Tay-Sachs disease is caused by mutations in the HEXA gene and inheritance is autosomal recessive . The HEXA gene gives the body instructions to make part of the beta-hexosaminidase A enzyme, which is needed to break down a substance called GM2 ganglioside.
i hope this helped! please mark me as brainliest and 5 stars >:)
Answer:
Frameshift mutation
Explanation:
A frameshift mutation is a genetic mutation caused by insertions or deletions that shift the whole sequence.
A car with a mass of 2000 kg and a boat with a mass of 500 kg are both moving at the same speed.
What is the ratio of the kinetic energy of the car to the kinetic energy of the boat?
A. 2:1
B. 4:1
C. 9:1
D. 16:1
Answer:
B
Explanation:
Kinetic energy is possesed by a body by virtue of its motion. The ratio of the kinetic energy of the car to the boat is 4:1.
What is Kinetic energy?The term kinetic energy refers to the energy that is possesed by a body by virtue of its motion.
Now;
Kinetic energy of the car = 0.5 * 2000 * v^2
Kinetic energy of the boat = 0.5 * 500 * v^2
The ratio of the kinetic energy of the car to that of te boat is; 0.5 * 2000 * v^2/0.5 * 500 * v^2 = 4:1
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Name the type of mutation below:
Orignial DNA: AATCCGC
Mutation DNA: AACCCGC
please help
Answer:
Deletion
Explanation:
The T was removed.
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Question 1 (1 point)
Saved
What 3 items are needed for photosynthesis to occur?
Question 1 options:
Oxygen, glucose, sunlight
Carbon Dioxide, water, sunlight
Sunlight, nutrients, water
Glucose, water, soil
Question 2 (1 point)
Saved
Why do animals not have photosynthesis?
Question 2 options:
animals do not have chloroplasts
animals have cell walls
animals have chloroplasts
animals have vacuoles
Question 3 (1 point)
Saved
What are the products of photosynthesis?
Question 3 options:
Carbon dioxide and energy
energy and sunlight
Oxygen, energy
energy and ATP
Question 4 (1 point)
Saved
Two plants were being tested for growth. Both were given water and proper soil, etc. However, one was placed in the closet, and one was placed in the window sill. Why did the one in the closet die?
Question 4 options:
It was not around other plants.
It was not around people enough.
It did not receive sunlight.
It did not have chloroplasts.
Question 5 (1 point)
Saved
When talking about the products of photosynthesis, why is it a HUGE issue when a vast amount of the rainforests is dying along with vast amounts of forests from fires/deforestation? Remember, we know that this hurts the ecosystems of animals living there, but what else does it effect?
Question 5 options:
the creation of carbon dioxide
the creation of carbon monoxide
the creation of too much smoke
the creation of oxygen
Answer:
carbon dioxide, water, and sunlight
Explanation:
glucose is what is created to feed the plant because of the three answers :)
hope this helped
Answer:
1. carbon dioxide, water, sunlight.
2. animals do not have chloroplasts.
3. oxygen, energy.
4. it did not receive sunlight.
5. the creation of oxygen.
Explanation:
I took the test and got 100 so it is write
Which two major biological processes involved in the oxygen cycle are represented in the diagram? A. respiration and precipitation B. photosynthesis and evaporation C. photosynthesis and respiration D. evaporation and precipitation
Answer:
(c)
Explanation:
The two major biological processes involved in the oxygen cycle are Photosynthesis and Respiration.
Because of this, the byproducts of one system are the reactants in the other, which is how photosynthesis and cellular respiration interact. Oxygen and glucose are produced during photosynthesis by using the energy from sunshine, water, and carbon dioxide. The production of carbon dioxide and water during cellular respiration needs glucose and oxygen. The expression for photosynthesis is the inverse of the equation for cellular respiration, which serves as more evidence for this argument.What is Oxygen cycle?The layer of gases present above the surface of the world is called the atmosphere. A biosphere is comprised of all of Earth's ecosystems. The biggest oxygen reserve is located in the lithosphere, the solid outer layer of the globe that also includes the crust. The oxygen cycle is crucial to the continuation of life on Earth, together with the carbon and nitrogen cycles.This biogeochemical cycle shows how oxygen moves throughout the atmosphere, ecosystem, biosphere, and lithosphere. The carbon cycle is linked to the oxygen cycle.Mainly responsible for preserving the atmosphere's oxygen content is the oxygen cycle. The complete process can be summed up as follows: the oxygen cycle starts with photosynthesis, which takes place in the presence of sunlight, produces oxygen back into the atmosphere, allowing people and other animals to breathe in oxygen and exhale carbon dioxide, and then links back to the plants. This demonstrates the independence and connection of the oxygen and carbon cycles as well.To learn more about Oxygen cycle, refer to:
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5. How might an effective vaccine given to a large percentage of the population during a
pandemic change the pandemic's outcome? Support your claim(s) using evidence from Table 1
why don't birds get electrocuted when they land on an electric wire?
please help me out :-)
Answer:
Electricity flows by the movement of electrons through conductors. If a bird perches on a wire with two feet there is no motivation to go through the birds' body so electrons choose the path of least resistance and continue to flow along the wire.
Explanation:
Answer:
Because there not grounded
Explanation:
Does anyone have the answers to this lab, PLEASE HELP
Sedimentary rocks form from rock and mineral fragments, and metamorphic rocks form from existing rock.
True
Or False
Answer:
True
Explanation:
Sedimentary - A rock formed as a result of the weathering process, either by compaction and cementation of rock mineral fragments, or the precipitation of dissolved minerals.
Metamorphic - These rocks form as existing rocks are subjected to intense heat and/or pressure, usually over long periods of time.
What remind’s you of the ribosomes in a cell???
Plz help due today!!
Answer:
i imagine them as peopel in a big city, or animals in the wild with predators that are hungry, the cell uses the ribosomes for food and to heal the cell with energy.
Explanation:
I'm at school and I need help
100points for the answer
male
Explanation:
Females ovary always have a X chromosome.
Males sperms are of two types, they either have X chromosome or Y chromosome.
If X chromosome of males is involved in fission then, it results in XX chromosome set, it results in a female child.
If Y chromosome of males is involved in fission then, it results in XY chromosome set, it results in a male child.
What does this mean about the relationship between an
allele’s frequency and its likelihood of being dominant?
DNA's shape is similar to what basic structure?
Answer:
a helix!
Explanation:
you can also call it a double helix
__________independent cells begin to form during ______________________________.
Answer:
its 2 and telephase 1
Explanation:
1. What enters a plant when stomata open? *
O carbon dioxide
O oxygen
O nutrients
O sugar
2. Loss of water vapor through stomata is called *
Answer:
The answer for 1 . Carbon dioxide
The answer for 2. Transpiration
Explanation:
Which statement best describe a chromosome?
A. It is a single piece of DNA that contains genes.
O B. It forms the hereditary material of all life on Earth.
OʻC. It is the passing of characteristics from one generation to the next.
O D. It is the part of a chromosome that ties together two chromatids.
Answer: A
Explanation: It most definetly not B, becuase not every form of life has DNA. A chromosome is a single chain of DNA that is coiled and super coiled to form dense thread-like pieces. The term chromosome is derived from the Greek words "chroma" or color and "some" or body and is so named because chromosomes have the ability to be stained with dyes.
Which of these is not true about water?
a. it's polar.
b. it can dissolve anything.
c. it is known as the universal solvent.
d. its molecules are attracted to each other.
Answer: B
Explanation: Water is capable of dissolving a variety of different substances, but not every substance. It can only dissolve somethings, not anything.
A patient has swollen feet, ankles, and legs, and has pain in his lower back. Tests show the level of urea, a waste product, in the patient's blood has suddenly risen. Which body system is most likely not functioning properly?
A.
Nervous
B.
Excretory
C.
Digestive
D.
Reproductive
The body system that is most likely not functioning properly is excretory system. The correct option is B.
What is excretory system?The excretory system is a detached biological mechanism that removes excess, unneeded materials from an organism's body fluids to help maintain internal chemical homeostasis as well as prevent body damage.
The excretory system's function is to remove waste from the body. Water, CO2, nitrogen, salts, and heat are among the wastes. Metabolism refers to the process by which the body converts food into energy.
The primary function of the kidneys is to eliminate excess water and wastes from the bloodstream through the production of urine, a liquid waste.
As the patient has swollen feet, ankles and legs and having urea level boosted in blood, it means his excretory system has some problems.
Thus, the correct option is B.
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Select the correct image. Which cell is the most specialized?
Answer:
no pics
Explanation:
Answer:
Where is the image?
Explanation:
Correctly complete the statement with the appropriate term.
Eutrophication is a dangerous process for
animals because it depletes the ecosystem
of oxygen.
Answer: Aquatic
Explanation:
Answer:
Explanation:
aquatic
what is needed for dna replication
Answer:
enzymes
ATP energy
nucleotides
Explanation:
All of the above are needed. Nucleotides are the basic building blocks of new DNA, ATP energy is needed because replication is an active process, and enzymes catalyze the reactions needed to carry it out (e.g. helicase to separate the strands to be replicated, DNA polymerase to build the new strands, and ligase to "glue" the fragments together).
A gene consists of which of the following?
1) A sequence of amino acids that create a specific protein.
2) A sequence of tRNA that brings the correct amino acid to the ribosome.
3) A sequence of bases of mRNA that code for a specific protein.
4) A sequence of bases on DNA that code for a specific protein.
Answer:
answer is part (4)
Explanation:
A sequence of bases on DNA that code for a specific protein
4) A sequence of bases on DNA that code for a specific protein.
Gene:A gene is the basic physical and functional unit of heredity.Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. Alleles are forms of the same gene with small differences in their sequence of DNA bases.Every person has two copies of each gene, one inherited from each parent.Thus, option 4 is correct.
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A cross between 2 phenotypically 'wild-type' individuals produces 9 wild type offspring for every 3 of one mutant phenotype and 4 of another mutant phenotype. What is the likeliest explanation for this?
Answer:
Recessive epistasis Interaction
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
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SENIOR THREE BIOLOGY CHRISTMAS DOSAGE
1.(a) (i) Explain why small organisms such as this amoeba can obtain sufficient oxygen for respiration without a
specialized gas-exchange system.?
fi)explain why the method of gas exchange in (a)i above is only possible in very small organisms.?
Answer:
In single celled organisms surface area to volume ratio is optimum for diffusion/exchange of substances between the cell and its exterior and this rate of exchange suffices the requirement of a unicellular organism. However, in multicellular organisms the surface area to volume ratio is low, the exchange that takes place with the exterior or the environment occurs only through the body surface with the help of a specific structure/organ, example (Skin),However, this exchange does not compensate for millions of cells in a multicellular organism, which have distinct requirements based on their function
Explanation:
i) Amoeba gets oxygen gas dissolved in surrounding water through its plasma membrane by the process of diffusion.
ii)The oxygen gas diffused inside the body is used up by amoeba. carbon dioxide gas is also liberated in the surrounding water through the same process of diffusion.
do heterotrophs perform photosynthesis
Answer:
I think the answer would be No my bad of I'm wrong
Which is an example of carbon accumulating in the geosphere?
Select one:
Formation of fossil fuels from remains of dead organisms.
Breaking down the body of a dead organism and producing carbon dioxide gas.
Formation of glucose in plants through photosynthesis.
Breaking down glucose in cells through cellular respiration.
Explanation:
it will option A hope it helps
(Don't answer unless u want a ant in ur hair) Why do we need school?
Answer:who knows
Explanation:
Answer:
So that we can learn and get a job which gives us money then with that money we can see each other and I can get all the cuddles I want lol I’m never gonna let you hang out with your friends mwahahaha >:3
Explanation:
what do geologist study
Answer:
The Earth and it's geography
Explanation:
Answer Geologist Study fossils and rocks and other minerals of the earth
Explanation:
I just know since one of my friends is one
why is it important to consider all three levels of biodiversity rather than just one
Answer:
Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.
Explanation:
Answer:
It is important to consider all three levels of biodiversity rather than just one because:
Explanation:
It is important to consider all three levels of biodiversity rather than just one because Biodiversity improves the productivity of habitats where each species, no matter how limited, has an essential role to play. For ex. a greater number of plant species means a greater range of crops. Greater species diversity assures the ecological survival of all life forms.
Which of the following is/are characteristics shared by most animals?
Asexual reproduction
Heterotrophic eukaryotes
All have radial symmetry
All have DNA outside of the nucleus
What happens to the pyruvate that enters the Krebs cycle?
