Answer:
. During prophase of meiosis I, the double-chromatid homologous pairs of chromosomes cross over with each other and often exchange chromosome segments. This recombination creates genetic diversity by allowing genes from each parent to intermix, resulting in chromosomes with a different genetic complement.
Explanation:
During meiosis, homologous chromosomes (1 from each parent) pair along their lengths. The chromosomes cross over at points called chiasma. At each chiasma, the chromosomes break and rejoin, trading some of their genes. This recombination results in genetic variation
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In a hypothetical population of 1,000 people, tests of blood-type genes show that 165 have the genotype AA, 470 have the genotype AB, and 365 have the genotype BB.
i need help finding the chi square value and please explain how u did it, can someone also explain this p value null hypothesis?
Answer:
p^2 + 2pq + q^2 = 1
0.16 + 0.48 + 0.36 = 1 (from the question)
hence, q^2 = 0.36
then, q= square root of 0.36
= 0.6
Explanation:
self explantory
please give 5 star
How do natural resource impact international relationships?
Answer:
Pretty much natural resource
Explanation:
Body fossils are remains of ancient organisms that have not been dramatically altered.
True
False
What is:
-Biology
-Chemistry
-Physics
15.
An object with a mass of 20.0 kg has a force of 5.0 newtons applied to it.
What is the resulting acceleration of the object?
Answer:
0.25m/s2
Explanation:
Force = mass x acceleration
5 = 20 x a
a = 5 ÷ 20
= 0.25m/s2
Which of these can be found in RNA but not DNA
Answer:
r u on edg
Explanation: if its edg i know it
Help please this shouldn’t be too hard!
The two copies of a gene for each feature can be different versions (heterozygous) and provide instructions for one type of protein.
True or False
False
I'm not sure though!!! sorry
One example of a feedback mechanism that tries to maintain homeostasis in the body is temperature control.
True or False
Answer:
You can find out (just researching) about thermoregulation and you would found your purpose quickly ^_^
Explanation:
I need help, please!!!!!!! Can someone help me I'm confused
Answer:
algae is classified into 2 thing's.
Brown algae: sea
Green algae: Volvox
Explanation:
the algae lives on places that's are not that's safe
describe how the chemical reactions of cellular respiration and photosynthesis keep the amount of carbon dioxide and oxygen balanced
Answer:
Cellular respiration and photosynthesis have the opposite formulas of each other. Cellular respiration is C6H12O6 + 6O2 --> 6CO2 + 6H2O and photosynthesis is 6CO2 + 6H2O --> C6H12O6 + 6O. Because both require the products of the other equation, they are balanced.
Explanation:
an ecosystem is a community of living organisms and their environment within...
Answer:
An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors include plants, animals, and other organisms.
Im not really sure how to answer your question but I hope this helps.
Look again at the enzyme diagram and it’s target molecule. How might a mutation affect the interaction between the enzyme and its target and the function of the enzyme in the organism?
By viewing the enzyme diagram and its target molecule, we can infer that a mutation might affect the interaction between the enzyme and target because it may change the shape of the enzyme and consequently inhibit its function.
What is a genetic mutation?A genetic mutation can be defined as a permanent alteration in the DNA sequence that makes up a gene, which affects the production of a protein and may have a wide range of effects on the function of a cell.
Therefore, with this data, we can see that a genetic mutation may modify the protein and thus affect the reaction.
Learn more about genetic mutations here:
https://brainly.com/question/15568479
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Which part of Griffith’s experiment helped him discover bacterial transformation?
Select one:
a. When he injected virulent bacteria into lab mice, they died.
b. When he injected a mix of heated virulent bacteria and live non-virulent bacteria into lab mice, they died.
c. When he injected non-virulent bacteria into lab mice, they lived.
help me please i need help
Answer:
With what?
Explanation:
which is not characteristic of mammals
(A) hair covering
(B) 3 chambered heart
(C) produce milk
(D) produce sweat
Answer:(C) produce milk
Explanation:
Answer:
I guess it is (B) 3 chambered heart
What will most likely happen to the population of moths in this habitat?
O The population of moths will eventually become extinct.
O The population of light moths will increase due to a selective pressure.
The dark colored moths will experience disruptive selection.
O The alleles that determine light and dark color in moths will equalize.
Answer:
B
Explanation:
Branliest pls
What would happen if cytokinesis did not occur?
Answer:
Cytokinesis takes place in both meiosis and mitosis and performs the separation of he cell in half and form one nucleus into each daughter cell.
If cytokinesis did not happen, it will from multinucleated cells which means that their will be multiple nuclei in single cell and cell will not get separate in half, and no new daughter cells will form.
When the Hubble Space telescope was first launched, it was the most advanced technology of its kind. Astronomers and astrophysicists all over the world celebrated its launch. Why was this event so important to these scientists??
Answer:
The telescope can see galaxies really far away, and it can "remap" time, to give a view of what it would've looked like
Explanation:
Can you please help me thanks you
Answer:
1. I can't tell exactly, diagram isn't clear. But it cannot be 'glycolysis' or 'dark reactions'. 2. B 3. A 4. B
Explanation:
Natural selection can occur as a result of...
o genetic variation in species
o asexual reproduction in species
o competition for unlimited resources
o the gradual warming of earth
Answer:
a
Explanation:
Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.
Answer:
Genetic variation in species
Explanation:
Natural selection is based on the idea of differential survival and reproduction. Basically this means there are genetic differences between individuals and there are too many individuals in the population to survive. The ones with the best genetic variations will survive and pass their genes on to their offspring. This doesn't happen if all organisms in the population are identical - either they all die, or they all survive.
What is starch?
type of polysaccharide
a complex carbohydrate
both a & b
none of the above
WHICH SPECIES OF ANIMALS ARE AFECTED THE MOST BY ACTIONS OF HUMANS IN CURRENT TIMES?SUGGEST WAYS TO PROTECT THEM.
Answer:
Polar Bears
Explanation:
The species that has most likely been the most affected by human actions would be the Polar Bears. The human population is growing at a staggering rate and this causes industrialization to expand rapidly as well. This continued and increasing use of fossil fuels for all of our basic necessities is rapidly heating up our world (Global Warming) and melting the ice caps. Without this it becomes nearly impossible for Polar bears to survive as they cannot find shelter and ultimately end up starving to death due to not being able to hunt for food as well. The only way to protect them is to begin protecting our planet, switching to more environmentally friendly sources of energy, and being mindful of our choices.
1.What causes surface currents?
A. differences in density
B. differences in water temperature
C. high salinity
D. wind forces
2.How do the causes of surface and deepwater currents differ?
A. Surface currents are caused by differences in water salinity; deepwater currents are caused by differences in water temperature.
B. Surface currents are caused by the Coriolis effect; deepwater currents are caused by differences in water density.
C. Surface currents are caused by differences in water density; deepwater currents are caused by wind.
D. Surface currents are caused by wind; deepwater currents are caused by differences in water density.
3.What is responsible for this pattern of movement?
A. the Coriolis effect
B. differences in water temperature
C, differences in water salinity
D. differences in water density
Which of the following statements are correct? *
Carbon dioxide and glucose combine during photosynthesis to make oxygen and
water.
Oxygen and water combine during respiration to make carbon dioxide and glucose.
Water and carbon dioxide combine combine during photosynthesis to make glucose
and oxygen
Glucose and oxygen combine during photosynthesis to make water and carbon
dioxide.
TAIL
Which of the following organisms is a tertiary consumer?
O frog
O redwood tree
O great white shark
athlete's foot fungus
Answer:
Great White Shark
Explanation:
The great white shark is top of the food chain. The fungus is the bottom of the food chain with the decomposers. The redwood tree is the Primary consumer sense it gets its needs from the sun and the nutrients from the ground. Lastly, the frog is the fourth of the food chain with the Carnivores, secondary consumers.
Two plates moving towards each other are called convergent plates, like those shown below.
Which structures are likely to form at a convergent plate boundary?
A) rift valley
B) wave erosion
C) mountains
D) river canyons
Which of the following terms would Bb
represent in an organism?
A. phenotype
B. genotype
C. genetics
How do oxygen and glucose molecules release energy in the cells? please make it simple
Answer:
Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. When the cell uses oxygen to break down sugar, oxygen is used, carbon dioxide is produced, and energy is released. In cells use oxygen to release energy stored in sugars such as glucose. In fact, most of the energy used by the cells in your body is provided by cellular respiration.
Explanation:
i tried my best to break it down into a simple explanation. hope this isn't too complicated, and i hope it helps!! have a nice day.
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Is ecological succession a slow or rapid process?
3. What is the approximate surface temperature of the sun?
Answer:
about 5800 kelvin
Explanation:
From the solar spectrum, we can infer that the surface temperature of the Sun is about 5800 kelvin, or 5527 degrees celsius.