Crossing a tall plant with a small plant. Allowing the tall F1 pea plants to self-pollinate can produce either tall or short offspring. each parent contributed one allele.
If a tall pea plant crossed with a short pea plant, what rule of inheritance was at play?Segregationist law. Mendel put out the law of segregation after noticing that true-breeding pea plants with opposing features produced F1 generations that all displayed the dominant trait and F2 generations that expressed the dominant and recessive traits in a 3:1 ratio.
Plants with various features or gene combinations are crossed to create new progeny.Crosses are crucial for plant breeding because they produce fresh genetic variants.To know more about gene :
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The capacity of a brain area to reorganize in response to damage is known as brain ____ a. hemispherectomy b. cognitive neural prosthetics. c. plasticity. d. lateralization
The capacity of a brain area to reorganize in response to damage is known as brain plasticity. Option C is correct.
Brain plasticity, also called as neuroplasticity, is the biological, chemical, as well as physical capacity for the brain to reorganize its structure and its function.
Neuroplasticity occurs as a result of learning, experience as well as memory formation, or as a result of damage to the brain.
Plasticity allows the brain to cope better with the indirect effects of brain damage resulting from an inadequate blood supply following a stroke. Fundamentally, the nervous system will needs to rearrange itself in order to adapt to the unfolding situation that it faces. The genes program of the body to have neuroplasticity so that animals can survive in an unpredictable environments.
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Turn these answers into two paragraphs. (5-8 sentences each)
Thank you! >_<
What are GMOs used for?
To give plants and animals the desired traits for a specific purpose.
Plants-Grow faster, taste better
Animals-Specific breeds, laboratory research, human consumption(Matured faster)
Where can you find organisms that are GMOs?
Produce section in stores
In addition to tasting better, genetically modified crops have higher yields, a longer shelf life, are resistant to pests and diseases, and are longer lasting.
What did you find most interesting?
Something I found interesting was how sometimes genes from one organism could be inserted into an entirely different one. The endless amounts of mixed results this can cause is fascinating. Another thing I found interesting was how GMO’s are used in around 90% of some of our everyday produce.
Do you think there is a benefit to using GMOs?
I do think there is a benefit to using GMOs because there is so much that they already do for us. Though there are risks, there are still ways to improve them. GMOs help our society, research, and food markets.
What did you learn?
I learned that GMO’s can be used to improve health, maturity, taste, and durability.
Today's GMO crops were primarily created to aid farmers in weed management, crop loss prevention, and food preservation. The following are the top three characteristics of GMO crops: resistance to several harmful insects.
What is GMO?GMOs are frequently employed in medications and scientific research in addition to food.
Microorganisms including bacteria and yeast, insects, plants, fish, and humans are just a few examples of the organisms that have undergone genetic modification.
Currently, GMOs make up over 90% of the corn, soybeans, and sugar beets available for sale.
GMOs can boost agricultural output and nutritional content in comparison to organic crops, requiring less space and other resources to produce our food.
GMOs shield crops from pests, boosting productivity and reducing the need for crop protection agents.
More nutrient-dense food is one of the potential advantages of genetic engineering. tastier food plants that can withstand disease and drought and use fewer resources from the environment (such as water and fertilizer).
Thus, these all can be inferred regarding GMOs.
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What is directional selection and give an example?
Directional selection occurs when individuals in a population with features on one side of the mean outlive or reproduce more than those on the other.
It has been proven numerous times in wild populations, using both observational and experimental methods.
Fossil data demonstrate that the size of black bears in Europe dropped throughout interglacial times of the ice ages, but increased during each glacial period, which is an example of directional selection. Another example is the size of a finch's beak in a population.
Natural selection is classified into three types: directional selection, stabilizing selection, and disruptive selection. They are also illustrations of adaptive evolution. Natural selection is an evolutionary mechanism that rewards organisms that are more adapted to their environments.
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increased levels of hormones during puberty can cause a(n) response to plaque biofilm. group of answer choices a) decreased b) exaggerated c) typical d) optimal
Option B, Increased levels of hormones during puberty can cause an exaggerated response to plaque biofilm.
The hormones during puberty can cause an exaggerated response to plaque biofilm without scientific evidence. It is important to note that oral hygiene and oral health are complex subjects and the effects of hormones on oral health are not well studied.
It would be best to consult with a dentist or a medical professional for more information.
Plaque biofilm is a complex bacterial ecosystem that forms on the surfaces of teeth and gums, and it is known that it plays a major role in the development of tooth decay and gum disease.
However, there is not enough scientific evidence to support the claim that increased levels of hormones during puberty can cause an exaggerated response to plaque biofilm.
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Through there are three different types of lipids with three different functions, they are collectively grouped because of one particular property. What is that property?
Though there are three different types of lipids with three different functions they are collectively grouped because of one particular property based on the absence of their mix with water.
What is the lipid class of biomolecules?The lipid class of biomolecules is a heterogeneous group of organic molecules that are characterized to have repulsion for water, i.e. they are hydrophobic and therefore do not mix with water.
Therefore, with this data, we can see that the lipid class of biomolecules is based on the fact that these organic molecules cannot be mixed with water molecules.
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!!!!!HURRY PLEASE!!!!!How does the theory of plate tectonics explain the movement of Earth’s plates? Explain In 2 or more sentences.
The theory of plate tectonics states that the Earth's surface is made up of several large, moving plates. These plates are constantly moving, colliding, and pulling apart due to forces generated by the movement of material in the Earth's mantle. The movement of these plates causes the creation of earthquakes, volcanoes, and mountain ranges as well as the formation of oceanic crust and the reshaping of continents over time. The movement of the plate is caused by the convection currents in the Earth's mantle, which causes the plate to move in a slow and steady way.
the only large expanses of old-growth forest remaining in the united states, most of them owned by the federal government, are found in which region?
The Pacific Northwest is home to the only significant remaining areas of old-growth forest in the country, the majority of which are held by the federal government.
The Amazon & Congo River Basins' humid tropical regions include the greatest continuous areas of surviving forests. Besides the Middle East, that also holds upwards of two-thirds of the world's natural gas reserves and nearly two-thirds of the world's oil reserves, all significant geographic locations of the world have coal. The Pacific Northwest is home to the only significant remaining areas of old-growth forest in the country, the majority of which are held by the federal government.The biggest complete coastal tropical wet forest is located in southeast Alaska's Tongass National Forest. This exceptional region, which spans almost 17 million acres, contains a few of the oldest trees in the country—many of which are more than 800 years old—and is home to the world's greatest population of bald eagles
(105. The only large expanses of old-growth forest remaining in the United States, most of them owned by the federal government, are found in which region? (12.6)
a) New England c) Rocky Mountains
b) Deep South d) Pacific Northwest)
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when an individual is born with a certain genetic predisposition or inherited characteristic. it is known as:
Individual when born with a certain genetic predisposition or inherited characteristic. it is known as congenital.
Congenital condition is seen when an individual is born with a certain genetic predisposition or inherited characteristic. Genetic predisposition is termed as an increased chances of forming a specific kind of disease based on a person's genetic makeup. A genetic predisposition often end to from definite genetic variations that are often inherited from a parent.
illnesses related to a genetic predisposition include certain cancers, diabetes, obesity, heart disease, asthma, celiac disease. While Researchers have also linked many mental illnesses like , autism to Genetic predisposition .
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which type of rna is transcribed from dna to carry a message?
Answer:
Explanation:
RNA is transcribed from DNA to transmit a message. RNA is a nucleic acid that is used to transmit the information contained in DNA genes through protein synthesis. The transcription process is the first stage of gene expression. During transcription, an RNA polymerase molecule binds to a DNA molecule and copies the sequence of nucleotides from a specific gene to produce a complementary RNA molecule.
There are three types of RNA that are produced from DNA transcription: messenger RNA (mRNA), ribosomal RNA (rRNA), and transfer RNA (tRNA). mRNA is the type of RNA that is used to transmit genetic information through protein synthesis. rRNA is the type of RNA that is used in protein synthesis, and tRNA is the type of RNA that is used to transport amino acids to the site of protein synthesis.
in paragraph 7, orenstein reports on two studies of primates. what conclusion does this evidence support? what conclusion does lise eliot's research (para. 9) support?
Conclusion that this evidence support gave is important characteristics of evidence analysis are: It should be logical and self-sustaining and The conclusions and interpretations should be convincing.
It should support the audit observation, Provides basis of arguments against the best possible counter argument. The analysis may be in the form of Cause and effective studies; Before and after studies; Process studies; Comparative studies; etc.
Evidence gathered leading to audit findings stand the test of their sustainability assured by the standards of their competence, relevance and sufficiency (reasonableness).
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Independent assortment and genetic variation
Consider a diploid cell where 2n = 6. During metaphase I of meiosis, as the pairs of homologous chromosomes line up on the metaphase plate, each pair may orient with its maternal or paternal homolog closer to a given pole. There are four equally probable arrangements of the homologous pairs at metaphase I. (Note that this problem assumes that no crossing over has occurred.)
The cells below show the eight possible combinations of chromosomes that the daughter cells of meiosis II can receive.
Sort each daughter cell into the appropriate bin depending on which arrangement at metaphase I would create it.
The first daughter cell can receive either the maternal chromosomes or the paternal chromosomes, and the second daughter cell can receive the other set.
During metaphase, I of meiosis, the homologous pairs of chromosomes line up on the metaphase plate. Depending on which homolog is closer to the pole, there are four arrangements of the homologous pairs.
During anaphase I, the homologous pairs separate and go their own way to the opposite poles. As a result, each daughter cell receives a combination of either the maternal chromosomes or the paternal chromosomes.
This arrangement is called the independent assortment and it results in genetic variation among the daughter cells. If a single homolog is passed to each daughter cell, the genetic variation would be reduced. Therefore, the independent assortment is important in creating genetic variation in the daughter cells.
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The map shows the distribution of wild boars in the United States. Wild boars are an invasive species to the United States. Which of these facts about wild boars is best supported by the evidence provided?
The right answer to this question is option D. Wild boars have a high reproductive rate and no natural predators.
What is known is that for a population to spread, such as the boars, it must be well suited to its surroundings, which the boars are extremely good at since they have a highly diverse food, a very high reproduction rate, and no natural predators, as stated in the question.
Humans are their only threat right now since they are where they are. With all of these features, this species can rapidly adjust to variations in weather. They can adapt successfully to different habitats owing to natural selection since they have a high reproduction rate.
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Full Question: The map shows the distribution of wild boars in the United States. Wild boars are an invasive species to the United States
Which of these facts about wild boars is best supported by the evidence provided?
A) Wild boars were brought to the United States by humans.
B) Wild boars have quickly spread through the United States.
C) Wild boars have established successfully in areas with warm climates.
D) Wild boars have a high reproductive rate and no natural predators
help meh please i need this soon
Answer:
Before meiosis, there is an interphase, which includes the G1, S, and G2 phases. During the G1 phase, the cell grows and carries out normal functions. In the S phase, DNA replication occurs, resulting in each chromosome having two identical sister chromatids joined at a centromere. In the G2 phase, the cell performs a final growth and checks for DNA damage before initiating meiosis.
if frequency of aa genotype is 0.36, the frequency of aa genotype is 0.48, and the frequency of aa genotype is 0.16, what are the frequencies of the a and a allele?
If frequency of AA genotype is 0.36, the frequency of AA genotype is 0.48, and the frequency of AA genotype is 0.16, than the frequencies of A and A allele is 0.4.
A person with the AA genotype has a very low chance of producing sickle-celled offspring and can choose a mate from almost any other genotype category. According to several studies, the AA genotype is the most malaria-prone even if it has the best concordance.
At a specific genomic region, an allele is one of two or more variations of the DNA sequence (a single base or a segment of nucleotides). For each genomic region with such variation, an individual inherits two alleles, one from each parent.
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which cell process moves substances against a concentration gradient
Substances move during active transport in the opposite direction of the concentration gradient, from a low concentration to a high concentration.
When there is a difference in particle concentration between two areas, this is known as a concentration gradient. Facilitated diffusion differs from active transport. Proteins are used to aid transport in both assisted diffusion and active transport. However, active transport moves chemicals from low-concentration locations to high-concentration areas, working against the concentration gradient. They use various proteins, which is another difference.
Instead of channel proteins, carrier proteins are used in active transport. Since these carrier proteins require ATP to change shape, they differ from those seen in facilitated diffusion. The fact that chemicals can only pass through channel proteins along the concentration gradient prevents them from being utilized in active transport.
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the iris if the eye can have many colors, including brown, blue, green and hazel. how do you think polygenic inheritance explain why many iris colors are possible
The iris of the human eye can have many colors because this trait is controlled by polygenic inheritance. Polygenic traits are phenotypic traits controlled by two or more genes that have a subtle effect on trait variation.
Eye color follows a polygenic pattern of inheritance. Humans recognize nine eye colors. Expression of the eye color phenotype is controlled by two major genes and 14 additional genes associated with the X chromosome. Different combinations of these alleles produce different eye colors. Eye color is directly related to the amount of melanin in the anterior layer of the iris. Brown-eyed people have a lot of melanin in their irises, while blue-eyed people have much less of this pigment.
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asking questions and determining the cause for phenomena are at the heart of what many scientists do. in this study, which question below best represents the scientific question asked by the researchers?
Scientists are constantly seeking to understand the natural world and the phenomena that occur within it.
One of the primary ways they do this is by asking questions and trying to find answers. This process begins with formulating a hypothesis, which is a proposed explanation for a phenomenon. Scientists then come up with experiments and collect data to test their hypothesis and see if the evidence supports it or not.
Asking questions and then determining the cause of phenomena is important because it allows scientists to make predictions about future events and develop new technologies and treatments. Both are crucial parts of the scientific process. It helps scientists to better understand the natural world and to develop new technologies and treatments that can improve human life.
The answer is based on general knowledge, as no context is provided.
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explain the components of the homeostatic control system for mammalian body temperature regulation, and how this functions when air temperatures are low.
The components of homeostatic control system for mammalian body temperature regulation consists of temperature sensors, neurons and hypothalamus.
The temperature sensors are present at various parts of the body on the skin that sense the change in temperature and send the signals to the hypothalamus of the brain through the neurons.
The hypothalamus acts as the integrator that balances the correct temperature of the body by sending the signals through the efferent neurons to set the appropriate temperature. If the temperature is low the signals are sent such the body shivers and the response generated by the individual would be wearing woolen clothes.
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Some monkey flowers (Mimulus guttatus) living near the sites of copper mines can grow in soil containing high concentrations of copper, which is toxic to most plants. Copper tolerance is a heritable trait.The map below shows the area near an old copper mine, which contaminated the nearby soil with copper. A stream flows past the mine toward the lake at the bottom right of the map.Use the map to determine which of the statements below are true.Select the three statements that are true.
The three statements that are true are
(C) The population that existed before mining must have included both copper-tolerant and copper-intolerant plants.
(E) Natural selection favors copper tolerance in all soils near the old mine, not only in the contaminated soils.
(F) Copper-tolerant plants are found only in contaminated soils.
It's important to note that statement (A) is not true, as copper tolerance is a heritable trait, meaning it is passed down from parent plants to their offspring. It is likely that the population of monkey flowers near the copper mines already included individuals with varying levels of copper tolerance before the mining took place. Statement (B) is also not true, it is unlikely that nearly 100% of monkey flowers growing in copper-contaminated soil are copper tolerant. And statement (D) is not true; you would not expect nearly 100% of monkey flowers growing on the shore of the lake to be copper tolerant, as the lake shore soil is not contaminated with copper
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Which BEST describes
facilitated diffusion?
A. Facilitated transport SOMETIMES
requires energy.
B. Facilitated transport requires A LOT of
energy.
C. Facilitated transport requires MORE
energy than active transport.
D. Facilitated transport DOES NOT require
any energy.
Answer:
D. Facilitated transport DOES NOT require any energy.
Explanation:
b/c DOES NOT require any energy.
the bacterial skin infection characterized by isolated pustules that become crusted and rupture is known as
Pyoderma, a frequent acute superficial bacterial skin infection, is very infectious and causes impetigo. Impetigo affects the epidermis and is typically noticed in young children.
The superficial layers of the epidermis are infected with an acute, highly contagious gram-positive bacterial illness called impetigo. The same microorganisms that cause typical impetigo can also secondary infect (impetiginize) skin wounds like cuts, abrasions, and chickenpox. A strikebreaker is someone who continues to work during a strike (also known as a scab, blackleg, or knobstick). Strikebreakers are typically people who were not working for the company prior to the labour dispute but were hired following or during the strike to keep the business operating.
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plasma accounts for about ________ percent of the total volume of whole blood.
Plasma accounts for about 55 percent of the total volume of whole blood.
Plasma constitutes 55% of total blood volume. Composed of 90% water, salts, lipids, and hormones, it is especially rich in proteins (including its main protein albumin), immunoglobulins, clotting factors, and fibrinogen.
Plasma performs several functions: transporting blood cells and nutrients; regulating the body’s water and mineral salts; irrigating tissues; providing a defense against infections; and coagulating blood.
The albumin contained in plasma prevents the blood from losing too much water and consistency as it travels through the narrow, water-permeable blood vessels (capillaries). Albumin transports various blood components and nutrients. The immunoglobulins also contained in plasma are antibodies that, along with white blood cells, play an important role in fighting against pathogens. Clotting factors, in combination with platelets, control hemorrhaging.
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The Best Park
of my
Christmas Holiday...
Include detail on that you did, the place you
went and who you share the experience with.
The best park of my Christmas holiday was visiting the National Zoo in Washington, DC. I spent the day with my family exploring the zoo, seeing all of the animals, and learning about conservation efforts.
Other details of my Christmas holiday:We arrived early in the morning and were among the first to enter the gates. We made our way through the park, making sure to take in all the sights and sounds. We saw elephants, giraffes, rhinos, lions, and many more animals. We also visited the Reptile House, the Great Ape House, and the Children's Zoo, which was a great experience for the younger members of our group.
The day was filled with laughter and learning as we explored the zoo. We took plenty of pictures and made lots of memories. We also stopped by the gift shop to pick up souvenirs like stuffed animals, t-shirts, and postcards. By the end of the day, we were all exhausted but happy.
The National Zoo was the perfect place to spend part of my Christmas holiday. It was a great way for my family to have fun, learn, and make memories together.
Why is Christmas the best holiday paragraph?Christmas is the best holiday because it is a time of joy, love, and celebration. It is the season when we come together to celebrate the birth of Jesus Christ, which is a reminder of the gift of love and peace.
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you're studying a population of an endangered wildcat in india. this population has been hunted aggressively, but there was also a rumor that the remaining ones are heavily inbred. you sample all 500 remaining cats to look for evidence of inbreeding and get the following genotypes: aa: 31, aa: 188, aa: 281 what do you conclude?
We conclude that the cats are not detectably inbred when studying about the population of an endangered wildcat in India.
Signs of immoderate inbreeding encompass ordinary small clutter sizes (one or kittens), crooked noses, misaligned jaws, extraordinary eye set and asymmetry. Male and ladies might also additionally revel in low fertility and most cancers is greater not unusualplace in more youthful cats.
Inbreeding is the mating collectively of intently associated cats, as an instance mother/son, father/daughter, sibling/sibling matings and half-sibling/half-sibling. It is the pairing of animals which might be greater intently associated than the common population.
In the wild, there'll constantly be a few diploma of inbreeding when you consider that cats will obviously breed with their near loved ones if they arrive into touch with every different while the girl is in heat. Therefore, a few diploma of inbreeding is natural.
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the structure at the end of an axon that produces neurotransmitters
Answer: Axon Terminals
Biologists measure the length of a tagged sea turtle. They learn that the turtle is 2.3 cm longer than the last time it was measured. Where did the sea turtle get the nutrients it needed to grow?
A. from the jellyfish it ate
B. from sunlight it absorbed
C. from the oxygen it breathed
D. from nutrients it absorbed from the water
The correct option (A) from the jellyfish it ate.
Sea turtles (superfamily Chelonioidea), sometimes known as sea turtles, are reptiles belonging to the order Testudines and the suborder Cryptodira.
The flatback, green, hawksbill, leatherback, loggerhead, Kemp's ridley, and olive ridley sea turtles are the seven extant sea turtle species.Under the Endangered Species Act, all six sea turtle species present in US waters (excluding the flatback) are designated as endangered or vulnerable.
The flatback sea turtle is the seventh sea turtle species, found in the oceans of Australia, Papua New Guinea, and Indonesia. Sea turtles are classified as either hard-shelled (cheloniid) or leathery-shelled (dermochelyid)
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which description is the best definition of a single nucleotide polymorphism, or snp? any variation in a single dna base between two individuals any variation in the sequence of genes that alters the morphology of an organism an rna protein in the spliceosome that marks where introns get excised during splicing events an artificially induced mutation in a protein coding region of the genome
The most accurate description of a snp, or single nucleotide polymorphism any difference in a single DNA nucleotide between two people.
Which of the following definitions most accurately describes a single nucleotide polymorphism, or snp?A single nucleotide polymorphism (SNP) is a variation in a single DNA base between two individuals.SNPs are the most common type of genetic variation and can occur in any location within a gene or the non-coding regions of the genome.SNPs are often used to study genetic differences between individuals or populations and to identify potential genetic risk factors for diseases.SNPs can result from both naturally occurring events and artificially induced mutations.When a SNP occurs in a protein coding region of the genome, it can have an effect on the function of the protein, which in turn can affect the phenotype of the organism.SNPs can also be used to trace ancestry and to identify populations that share a common evolutionary history.SNP data can be used to study the evolution and population structure of a species, as well as to identify potential gene-environment interactions.To learn more about single nucleotide polymorphism, or snp refer to:
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Is natural selection a stabilizing factor?
Answer:
Stabilizing selection in evolution is a type of natural selection that favors the average individuals in a population.
which type of blood vessel surrounds tissues and cells?
Answer:
Capillaries
Explanation:
Capillaries surround tissues and cells and help deliver blood, nutrients, and oxygen to cells throughout the body. They work in various different ways to support organs and the functioning of the vascular system.
Capillaries are Blood vessels that do not have the elastic tissue of other blood vessels.
The capillaries also connect the branches of arteries to the branches of veins.
Functions of capillaries:
Capillaries help the circulatory system by connecting arteries to veins:
Arteries carry oxygen-rich blood from the heart to your organs whereas veins help the body remove low-oxygen blood and waste.Capillaries also support Bone marrow it enables new blood cells to enter our bloodstream.The liver is supported by capillaries as it removes defective red blood cells and bacteria.the number of genes estimated in the human haploid genome is about 21,000. how many genes are present in a zygote? group of answer choices 21,000 10,500 42,000 84,000
There are 42,000 genes present in a zygote if the number of genes estimated in the human haploid genome is about 21,000.
The 3 billion base pairs of DNA that make up the human genome are arranged into 23 different chromosomal pairs. There are 6 distinct gene types known to science: 1. 2. complementing genes 3. duplicate genes 4. polymeric genes Gene modification: 5. Lethal Genes: 2, 6, and 7. Transient Genes. Although the precise number of genes in the human genome is unknown, it is believed to be between 21,000 and 25,000.
The number of genes is doubled when two haploid genomes are combined (fertilization)
At all stages of development, the human population has an identical amount of genes. As you develop from a zygote to an embryo to a child to an adult, the number of genes doesn't vary.
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