One faulty gene on chromosome 4—one of the 23 human chromosomes that contain a person's full genetic code—causes Huntington's disease, a degenerative brain condition.
Anyone who inherits this "dominant" defect from a parent who has Huntington's disease will eventually develop the condition.
Huntington's illness persists in human populations for two key causes, according to research on the evolutionary genetics of this condition: mutation in combination with weak selection.
The transmission of the Huntington's allele is depicted in the diagram to the right.
With dominant illnesses like Huntington's disease (HD), determining risks is typically not too difficult.
Each child typically has a 50% risk of getting it if one parent does. It is also likely that none of the children will catch the illness if neither parent does. Huntington's disease is a genetic dominant condition.
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Matthew claims that people should invest in alternative sources of energy rather than burning fossil fuels
Answer:
Ok. What is his reasoning?
Explanation: Because if he belives it is true he is aloud to have a belief but I would like to understand his reasoning
what mechanism coordinates the expression of multiple, related genes in eukaryotic cells?
The ability of a single repressor to silence several related genes. The genes have a single shared enhancer, which enables the right activators to switch on both of their transcriptions simultaneously.
What is the name of cells?All organic things are produced from simple units cell called. Millions of billions of cells make up the human body. They can provide skeletal structure, absorb the nutrients from the diet, translate those food to energy, and complete tasks.
Why are cells alive?All living things have basic building blocks called cells. In addition to absorbing nutrients from meals and performing other crucial tasks, cells provide the body structure. To build tissues, cells assemble into groups. to produce organs, which in turn clump together? the heart and the brain, for example.
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classify each description as a characteristic of nondisjunction in meiosis i or nondisjunction in meiosis ii.
Only one homologous pair enters each daughter cell during meiosis I, which results in a halploid cell. Only sister chromatids are divided during meiosis II. In contrast to mitosis, sister chromatids are not pushed apart at the centromere during meiosis I but are during meiosis II.
What does meiotic nondisjunction entail?Meiosis I (first row), meiosis II (second row), and mitosis are three processes in which nondisjunction can happen (third row). Aneuploids, or daughter cells with unusual chromosomal counts, can result from these unequal separations.
What transpires in meiosis 1?The first stage of meiosis, during which one parent cell divides into two daughter cells, is referred to as meiosis 1. Homologous chromosomal pairs will segregate and separate at this point.
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which is a functional benefit of having a vertically short and broad pelvis among hominins? a) increasing the length traveled by gluteus maximus muscle to assist in running b) reducing hernia risk for males by reinforcing the inguinal ligament c) a larger birth canal for easier childbirth d) shorter distance (i.e., greater mechanical advantage) of lesser gluteal muscles when reinforcing the hip joint during walking
Functional benefit of having a vertically short and broad pelvis among hominins is a larger birth canal for easier childbirth. So, the correct option is c).
Short and broad pelvis present in hominis is for improving locomotor efficiency when carrying an infant. And Larger birth canal is for easier childbirth. Fundamental alterations of the pelvis when compared with non-human primates, facilitated bipedal walking. Further changes early in hominin evolution leads to production of a platypelloid birth canal in a pelvis that was wide. Thus, the functional benefit of having a vertically short and broad pelvis among hominins is a larger birth canal for easier childbirth.
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Which statement below about nucleotides is TRUE? a)Base pairing occurs between the 5' and 3' carbons of the sugar in a nucleotide b)A deoxynucleotide triphosphate (dNTP) becomes DNA nucleotide during polymerization. c)In a nucleotide the base is either deoxyribose (in DNA) or ribose (in RNA) d)A nucleotide is composed of two nitrogenous bases, sugar; and phosphate group
Of the four statements given, statement c) is TRUE. The base of a nucleotide can either be deoxyribose (in DNA) or ribose (in RNA).
Base pairing occurs between the nitrogenous bases in a nucleotide and not between the 5' and 3' carbons of the sugar, so statement a) is FALSE.
A deoxynucleotide triphosphate (dNTP) does become a DNA nucleotide during polymerization, making statement b) TRUE. DNA polymerization occurs when a DNA polymerase binds to a dNTP, and adds it to the 3' end of a growing strand of DNA.
In summary, statement c) is TRUE, statement a) is FALSE, and both statement b) and d) are TRUE. A nucleotide is composed of two nitrogenous bases, sugar, and phosphate group, and a deoxynucleotide triphosphate (dNTP) becomes a DNA nucleotide during polymerization.
A nucleotide is a building block of nucleic acids such as DNA and RNA. It is composed of two nitrogenous bases, sugar, and phosphate group.
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states. the bay is one of the most productive natural areas in the world. it is home to thousands of plants and animals, including many commercially important species. the water of the bay is relatively shallow. many areas are no more than 10 feet deep, with an average depth of 30 feet. light penetrates the shallow water and supports submerged plants that provide food and shelter for the many species living in the bay ecosystem. however, like many estuaries, the bay receives large amounts of fertilizer runoff from farms, lawns, and wastewater treatment facilities. the marshland area around the bay that reduces flooding is a
The marsh area around the bay that reduces flooding is a wetland.
Wetlands occur where water meets the ground. Examples of wetlands include mangroves, peatlands, swamps, rivers, lakes, deltas, floodplains, paddy fields, and coral reefs. Wetlands exist in every country and every climate zone, from the arctic to the tropics, and from the highlands to the arid regions.
The function of wetlands is not only understood as supporting life directly, such as a source of drinking water and a habitat for a variety of creatures, but also has various ecological functions such as controlling floods, preventing seawater intrusion, erosion, pollution, and global climate control.
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which stage of the cell cycle causes the pinching in of the cell membrane to create two individual cells?
Answer:
Third stage
Explanation:
The third stage of the cell cycle. In this stage the cell membrane pinches in around the middle of the cell. The cell splits into two.
how easy is it to breathe through a straw? when you breathe deeply, you pull in 4.0 l of air in about 3.0 s. this requires a pressure difference of about 4.0 kpa between the air in your lungs and the outside air.
I believe that both the velocity and the pressure difference breathe through a straw necessary for the liquid to rise to the straw's upper point should be calculated.
Is using a straw to breathe healthy?Your body regains its natural balance and your response to stress is reduced with regular practice using a straw. Additionally, it can significantly lessen anxious feelings. Allowing your lungs to fully expand, take a comfortable seat with your back straight. Breathe in deeply and gently through the straw while exhaling thoroughly through your nose.
Through a straw, how do you breathe?Breathing straw Use a drinking straw to conduct a complete exhalation to ensure that all the air has left your lungs. typical breathing (not through the straw). Completely exhale through the straw.
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(Please explain the correct answer-- I picked letter A)
The highest surface wind speeds occur when there is a:
A) 4 millibar air pressure difference between 2 nearby locations
B) 4 millibar air pressure difference between 2 distant locations
C) 20 millibar air pressure difference between 2 nearby locations
D) 20 millibar air pressure difference between 2 distant locations
question 7 based on passage information, parp-1 most likely stabilizes nucleolar integrity by: a. inducing pseudo-ltp conditions. b. inhibiting the rate of formation of padpr. c. transcribing the fibrillarin gene. d. mediating the poly-[adp]-ribosylation
Option B, Parp-1, most likely maintains nucleolar integrity by slowing the synthesis of padpr.
PARP inhibitors are a form of cancer treatment. They are used to treat certain ovarian cancer patients. They are also being studied as a possible therapy for other forms of cancer. PARP inhibitors include olaparib, niraparib, and rucaparib.
PARP, which stands for poly-ADP ribose polymerase, is a protein enzyme present in human cells. It aids in the healing of damaged cells. PARP inhibitors are cancer treatments that prevent PARP from conducting its repair activity in cancer cells, causing the cell to die.
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in a genetic cross between aabbccddee and aabbccddee what fraction of the offspring will be homozygous for all dominant alleles?
The fraction of the offspring will be homozygous for all dominant alleles is 1/128. A homozygous dominant allele combination contains two dominant alleles and expresses the dominant phenotype (expressed physical trait). A homozygous recessive allele combination contains two recessive alleles and expresses the recessive phenotype.
In this genetic cross, all of the offspring will be homozygous for all dominant alleles because the parents are homozygous for the alleles. To understand this, we need to review the principles of Mendelian genetics.
Mendelian genetics is the study of inheritance patterns of genes, which are units of genetic information that are passed from parent to offspring. Genes can be either dominant or recessive. Dominant genes are expressed when only one copy is present, while recessive genes require two copies to be expressed. In this case, all of the alleles are dominant, so it does not matter whether a single copy or two copies are present.
In this particular cross, the parents are homozygous for the alleles, meaning that they possess two copies of the same allele. This means that all of the offspring will also be homozygous for the alleles because they will inherit two copies of the same allele from each parent. Therefore, the fraction of offspring that will be homozygous for all dominant alleles will be 100%.
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Animals should have the same rights as humans
This is a statement of opinion that expresses the belief that animals deserve the same level of moral consideration and legal protection as humans. Some people believe that animals should have the same rights as humans because they are sentient beings that experience pleasure, pain, and other emotions, and therefore should be treated with respect and compassion. Others argue that animals are inferior to humans and do not have the same cognitive abilities or moral capacities, and therefore do not deserve the same rights.
The issue of animal rights is complex and multifaceted, and there are valid arguments on both sides of the debate. Ultimately, whether or not animals should have the same rights as humans is a matter of personal belief and values, and people may hold different opinions on the subject.
Answer
Animals deserve the same level of moral consideration and legal protection as humans. Some people believe that animals should have the same rights as humans because they are sentient beings that experience pleasure, pain, and other emotions, and therefore should be treated with respect and compassion. Others argue that animals are inferior to humans and do not have the same cognitive abilities or moral capacities, and however do not deserve the same rights.
The problem of animal rights is complex and difficult, and there are valid arguments on both sides of the debate. Moreover, whether or not animals should have the same rights as humans is a matter of personal belief and values, and people may hold different opinions on the subject.
HOPE THIS HELPS
The graph here shows the carrying capacity for two populations of salmon
living in different ecosystems.
或RAR2028
25
10
7 8 9 10 11 12 13 1415
Time
Area A
Area B
Which of these is area A more likely to have than area B?
Compared to area B, area A has higher food resources.
According to its available resources, such as food and space, a habitat's carrying capacity is the largest population it can accommodate. The carrying capacity of area "A" is greater than that of area "B" in the given graph because area "A" supports a bigger population size of salmon than area B.
How is the salmon population faring?The shock of passing through the turbines and the fact that predators eat the bewildered fish when they emerge from the dam are two reasons why dams kill fish. Overfishing is a potential additional factor in the reduction of salmon. The weather affects how much food salmon have access to in the ocean.
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Please help 100 points
What units will you use to collect your data?
“How does the color of light affect plant growth?”
Answer:
It is important to carefully consider the units you will use to collect data when conducting a scientific experiment. In the experiment described, "How does the color of light affect plant growth?", there are a few different options for units that you could use to collect data. Some examples of units that might be relevant for this experiment include:
Length: You could measure the length of the plants at different points during the experiment to track their growth over time.
Width: You could also measure the width of the plants, either at specific points along their stems or by measuring the diameter of the entire plant.
Height: Alternatively, you could measure the height of the plants from the soil surface to the top of the highest leaves.
Mass: You could also measure the mass of the plants, either by weighing them on a scale or by using a balance to measure their weight.
question 8 which of the following are likely sources of human dietary phosphorus? a. protein and hydroxyapatite b. protein and aminobisphosphonate c. dna and rna d. phosphoric acid and calcium
The correct option is C : Because they have a phosphate backbone, nucleic acids are sources of phosphorus in food. Nucleic acids include RNA and DNA.
Although "Diets rich in protein and calcium" were suggested as diets that would probably satisfy phosphorus needs, protein and calcium do not contain any phosphorus on their own. Protein-incorporating biological amino acids do not exist.
Many foods naturally contain phosphorus, but dairy, red meat, poultry, shellfish, legumes, and nuts are the largest sources.
These foods contain what is referred to as organic phosphorus. Animal foods absorb it more effectively than plant foods do.
A component of DNA, RNA, bones, and teeth is phosphorus [1]. Phosphorus, in the form of phospholipids, is also a constituent of ATP, the body's primary energy source, and the structure of cell membranes.
The body phosphorylates a large number of proteins and carbohydrates.
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Which of the following would NOT contribute to genetic variation?
A) crossing-over of homologous chromosomes
B) crossing-over of sister chromatids
C) the random alignment of the chromosomes during metaphase I
D) the combination of sperm and egg genes
Crossing-over of sister chromatids is not contribute to genetic variation.
What is crossing over in meiosis?
In the process of crossing over, which happens between prophase I and metaphase I, two homologous non-sister chromatids link up with one another and trade distinct genetic segments to create two recombinant chromosome sister chromatids.
What is the term for meiotic crossing over?
Crossing-over is a type of reciprocal recombination that takes place after premeiotic interphase, when the replication of chromosomes has already taken place.
It involves the breakage and exchange of two nonsister chromatids from the four homologous chromatids present during prophase I of meiosis.
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QUESTION 7 2 pol ООО DNA sequence analysis shows that whales O have almost identical genomes. O have less sequence homology between them than horses and cows. O have a mutation in their limb genes that prevents them from producing limbs at all. O have more sequence homology with each other than they do with other mammals.
DNA sequence analysis shows that whales have almost identical genomes. the correct answer is A.
What is an analysis of DNA sequences?The process of putting a DNA or RNA sequence through a variety of analytical techniques in order to determine its characteristics or evolution is known as DNA sequence analysis. DNA sequencing can show alterations in a gene that may cause a disease, and sequence analyses from other organisms can be compared to study how species have evolved. "STR" (short tandem repeat) analysis is one of the popular methods of DNA profiling used nowadays for criminal trials and other types of forensic purposes.
Therefore, alterations in a gene that can cause a disease can be discovered via DNA sequence analysis. Analysis of DNA sequences reveals that whales have very identical genomes.
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The following is a map of four genes on a chromosome.
A---5--W--3--E------12------G
Between which two genes would you expect the highest frequency of recombination?
Given that the map distance between W and G is equivalent to 15 centimorgans, we may infer from the list of chromosomes and the aforementioned question that we should anticipate 15% recombination between W and G gene. It's option (B).
A centimorgan (cM), which is a unit that describes a recombination frequency of 1%, is used to measure map distance. And based on this criterion, we can infer that the lowest frequency of recombination, or 3%, is expected to occur between W and E. Let's assume that P is the epistatic gene that controls the formation of the tail.
According to the question, the genotype of the female is ppTT and the genotype of the male is PPtt because the male lacks a tail and is recessive homozygous for the tail length gene. The female is long-tailed and the dominant epistatic allele P specifies that no tail is formed. The offspring that is produced after mating has the genotype PpTt and the phenotype "no tails." Currently, two springs with the identical PpTt genotype are being crossed. Therefore, punnette square can be used to calculate the consequent ratio.
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Correct Question:
The following is a map of four genes on a chromosome. A---5--W--3--E------12------G. Between which two genes would you expect the highest frequency of recombination?
a. A and G
b. W and G
c. W and E
d. A and W
e. E and G
humans have a diploid number (2n) of 46. which of the following statements best predicts the consequence if meiosis did not occur during gametogenesis? responses the gametes would get larger from one generation to the next. the gametes would get larger from one generation to the next. the chromosome number would double with each generation. the chromosome number would double with each generation. the chromosome number would be halved with each generation. the chromosome number would be halved with each generation. the chromosome number would triple with each generation.
Statements best predicts the consequence if meiosis did not occur during gametogenesis c. the chromosome number would double with each generation.
When meiosis does not occur during production of gametes i.e sperm cells and egg cells then it will results in number of chromosomes this would increase in every generation. Meiosis also results in reductional division that results in chromosome number and the gamete to becomes haploid.
In general, defects in gametogenesis is responsible for increase in number of chromosomal abnormalities including non-disjunction or polyploidies. Non-disjunction happens when chromosomes fail to separate appropriately.
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Which of the following correctly describes the synthesis of proteins?
DNA is transmitted to mRNA, which then attaches to a ribosome where it is translated into a protein.
DNA is translated to tRNA, whihc then attaches to a ribosome where it is transcribed into a protein.
DNA is transcribed to mRNA, which then attaches to a ribosome where it is translated into a protein.
DNA is transcribed to tRNA, which then attaches to a ribosome where it is translated into a protein.
The amino acid sequence for the protein is translated onto a ribosome in the cytoplasm after being transcribed from an RNA strand in the nucleus.
How would you define protein synthesis?Cells create proteins through a process known as protein synthesis. Transcription and translation take place simultaneously. Transcription is the process by which genetic information is transformed from DNA to mRNA in the nucleus. Its three steps are initiation, elongation, and termination.
What is the step-by-step procedure for making proteins?Initiation, elongation, and termination are its three stages.Following processing, the mRNA transports the instructions to a ribosome in the cytoplasm.The ribosome, which is made up of proteins and rRNA, is where translation happens.
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: during methyl-directed mismatch repair the strand is cleaved, because it is the strand. choose one: a. methylated, newly synthesized b. methylated, parental c. unmethylated, newly synthesized d. unmethylated, parental e. none of the other choices is correct.
The mechanism known as Recognition of Nicks allows the cell to determine which strand of DNA is the original (or unmutated) strand during mismatch repair.
In this context, the term "mismatch repair of DNA" (Deoxyribonucleic Acid) refers to the body's mechanism for detecting faults that may occur during DNA copying and recombination.
Additionally, it aids in the restoration of various DNA damage.
When damage has occurred, the cell uses a process called identification of Nicks to determine which DNA strands are intact and which have errors during the Mismatch Repair process.
A Ligase is produced during Nick recognition, helping the Protein Complex that actually accomplishes the recognition to develop.
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Which of the following(s) is/are true about mutations?AMutations can be inherited.BMutations eventually lead to evolution.CEven a single nucleotide substitution can be termed mutation.DMutations can never be acquired from the environment.
C Even a single nucleotide substitution can be termed mutation is/are true about mutations
What mutation is brought on by nucleotide substitution?When DNA is replicated, a replacement mutation occurs when the incorrect nucleotide or sequence of nucleotides is placed in the incorrect spot. A single nucleotide is substituted in a point mutation, a form of substitution mutation.
The insertion or deletion of nucleotide bases in amounts that are not multiples of three is referred to as a frameshift mutation in a gene. This is significant because a cell reads the genetic code for proteins in groups of three nucleotides.
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What muscles elevate the scapula?
The muscle that lifts the scapula is the levator muscle.
What is muscle?Muscles are tissues in the human body that can contract (shrink) and relax (slacken). When contracting, the muscle will become shorter. Conversely, during relaxation, the muscles will elongate.
Muscles are divided into three types namely striated muscles, smooth muscles, and cardiac muscles. The three types of muscles have different locations and structures.
Meanwhile, the levator scapula muscle is located in the neck and upper back area of the back. This muscle is primarily responsible for lifting the scapula and rotating the underside of this bone to the midsection.
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in cats, short fur is dominant over long fur. if two cats that are both homozygous dominant for fur length are bred, which combination of offspring best represents the likely outcome of the cross?
That may be homozygous dominant or homozygous recessive, and it can be either AA or aa. A person who possesses two dominant "A" alleles for a specific gene is said to be homozygous for that gene. One who possesses two recessive "a" alleles and is homozygous for them will have the genotype "aa."
One of two types of organisms can exist: homozygous recessive (TT) or homozygous dominant (TT) ( tt ). Heterozygous denotes that an organism possesses both alleles (Tt) of a particular gene (hetero- means different).
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drag the labels onto the diagram to identify the structures and functions of the nephron.
Labels are discussed below to identify the structures and functions of the nephron.
What is structures and functions of the nephron?The structural and operational component of the kidney is the nephron. The primary purposes of this intricate microscopic structure are to create urine and remove extraneous chemicals and ions from the blood. Humans have long tubular organs called nephrons that make up their excretory system.
Nephron, a functional component of the kidney, is the organ responsible for producing urine as waste and extra chemicals are eliminated from the circulation. Each human kidney has roughly 1,000,000 nephrons.
Replace the labels as given below:
1. 300 mOSM and 30 percent volume should be replaced with label "300 mOSM 100 percent volume"
2. 100 mOSM should be replaced with lable "300 mOSM 30 percent volume"
3. 300 mOSM 100 percent volume should be replaced with lable "100 mOSM".
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The complete question is as follows:
what is an electrochemical gradient and how is it formed during cellular respiration and photosynthesis
An ion that may flow across a membrane typically exhibits an electrochemical gradient, which is a gradient in electrochemical potential.
The gradient is made up of two components: an electrical gradient and a chemical gradient, or a difference in charge across a membrane and solute concentration, respectively. When an ion's concentrations are unevenly distributed over a permeable membrane, the ion will simply diffuse across the membrane from the region of greater concentration to the region of lower concentration. Due to the difference in electrical charge across the plasma membrane, the electrical component is produced. And the change in ion concentration across the membrane is what causes the chemical component.
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have dental formulae of 2-1-3-3 and primitive nasal anatomy similar to non-primate mammals. a) atelids (spider monkeys and their close relatives) b) catarrhines (old world monkeys and apes) c) cebids (capuchin monkeys and their close relatives) d) strepsirhines (lemurs and lorises)
The atelids (spider monkeys and their close relatives), have dental formulae of 2-1-3-3 and primitive nasal anatomy similar to non-primate mammals. Correct answer: letter A.
This is due to the evolution of their diet. As their diet changed to include more fruits, their teeth adapted to the new diet, resulting in a decrease in the number of incisors, premolars and molars, which is reflected in the 2-1-3-3 dental formula. The primitive nasal anatomy is also a consequence of the change in diet, as their noses adapted to better process the smells and aromas of the fruits they ate.
Evolution of the atelids (spider monkeys and their close relatives)?The group is believed to have arisen from a common ancestor in the New World during the middle to late Miocene (about 8-12 million years ago). Since then, the group has diversified and spread throughout Central and South America, giving rise to several species, including:
Spider monkeysWoolly spider monkeysWhite-bellied spider monkeysBlack-headed spider monkeysThe group has also developed a variety of social, dietary and locomotor behaviors, as well as physical characteristics, to adapt to the different environments they inhabit.
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which of the following statements is true concerning thermoreception? group of answer choices increased depolarization of thermoreceptors is the result of increased temperatures. heat and cold are received by the same receptors. when the temperature at the body surface remains stable, the thermoreceptors become inactive. when the body temperature increases, receptors decrease their rate of firing. pacinian corpuscles are important thermoreception devices.
Regarding Thermoreception, the following claims are true: Temperature increases lead to an increase in thermoreceptor depolarization.
Which of the above statements accurately sums up thermoreceptors?The spinothalamic tracts are used to transmit thermoreceptor-detected sensations. They are receptors for tonics. Thermoreceptors become particularly active when the temperature changes, but they need some time to become accustomed to a steady temperature.
What is accurate regarding thermoreceptors?The nerve cells known as thermoreceptors are trained to detect temperature variations. Temperature is a measure of how much heat is present in an environment. Thermoreceptors, which can distinguish between heat and cold, are present all over the skin and enable sensory reception throughout the body.
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mechanical abrasions or injuries to the epidermis are know as:
Mechanical abrasions or injuries to the epidermis are known as excoriation.
What are mechanical abrasions?Mechanical abrasion that often only affects the epidermis but can occasionally reach the papillary layer of the dermis. Scratching with the fingernails in an effort to reduce itching results in excoriations. An abrasion means that the surface layers of the skin (epidermis) has been broken.
What are the causes of mechanical abrasions?Abrasions are most typically produced by falling, sliding, or other forms of mishaps. Numerous abrasions happen quickly and without warning, and some may not even be recognized right away. When the skin is scraped against a hard or rough surface, abrasions commonly develop on the exposed extremities, such as the arms and legs.
Mechanical abrasions or injuries to the epidermis are known as excoriation.
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A dam is built that separates a river into two sections—a deep upstream section and a shallow downstream section. When the dam is first built, a fish species is able to move from the upstream section into the downstream section, but not vice versa. Predators can more easily catch the fish in the shallow downstream section than they can in the deep upstream section. Which scenario is most likely to lead to speciation?
A. The fish population contains individuals with effective predation evasive traits and eventual changes to the dam prevent fish from moving downstream.
B. The fish completely lack any effective predation evasive traits across the entire population, move infrequently from upstream to downstream locations, and reproduce with low frequency.
C. The fish reproduce with high frequency, move with high frequency from upstream to downstream locations, and have a robust set of predation evasive traits across the entire population.
D. The rate of upstream fish entering the downstream section decreases over time without being completely shut off, and many of these fish carry predation evasive traits.
A fish species can transfer from the upstream section into the downstream section when the dam is originally constructed, but not the other way around.
What is Nam Ngum River?
A dam is constructed to divide a river into two sections: a deep segment upstream and a shallow section downstream. Cross-river buildings can cause two different forms of damage. They initially act as obstacles to most species' upstream and downstream movement. Just west of Ban Long Cheng, on the Nam Ngum River, NN3 plans to construct a 220 m high dam. A little amount of household fish is caught upstream and downstream.
Our first chapter in the first book, titled Fish Biology, examines the biological foundations of fisheries management. A dam is constructed to divide a river into two.
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