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irinina [24]
2 years ago
15

why is it important that the time between the first and second sample is a short time relative to the life span of the organism

Biology
1 answer:
NISA [10]2 years ago
7 0

Answer: A lot could or could have started to happen

Explanation:

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What are the most likely percentages for offspring of two red/white-feathers parents?
weeeeeb [17]

Answer:

The question lacks options, the options are:

parents?

A.100% red/white-feather chickens.

B.50% white-feather chickens and 50% red/white-feather chickens.

C.33% white-feather chickens, 33% red-feather chickens, and 33% red/white-feather chickens.

D.25% white-feather chickens, 25% red-feather chickens, and 50% red/white-feather chickens

The Correct answer is D

Explanation:

According to the question, the hybrid chicken has a mixture of red and white feather phenotypes expressed at the same time. This tells us that the red and white alleles are CODOMINANT in the chicken i.e. none is dominant or recessive over the other.

Let's assume that (R) allele is the red feather colour while (r) allele is for white feather colour. Therefore, the red/white feathered chicken will have a Rr genotype. In a cross between two red/white feathered chicken (Rr), the following offsprings will be produced RR, Rr, Rr and rr

RR- Homozygous red feather d chicken (1/4 × 100=25%)

Rr- Hybrid Red/White feathered chicken (2/4 × 100=50%)

rr- Homozygous white feathered chicken (1/4 × 100=25%)

8 0
2 years ago
Balance the chemical reaction of water<br><br> H2+02 — H20 <br><br> Added photo plz if you can help
Sphinxa [80]

H2+1/2O2-->H2O

since there are two atoms of hydrogen present in the reactants and in the product you don't need to add any number before H2

we add 1/2 before O2 because only 1 atom is needed for the water molecule

8 0
2 years ago
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What is the largest level of biological study?
ratelena [41]
The largest is the Biosphere 
5 0
3 years ago
What happens if there is not enough ATP available
erastova [34]
<span>Adenosine triphosphate or ATP is a way to store and use energy in the food we eat. If there is not enough ATP, this could lead to lesser oxygen in the cell on the food; hence, this will affect the energy that we can get from a certain food.</span>
3 0
2 years ago
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A cell with 10 chromosomes undergoes mitosis. Indicate how many chromosomes would be expected in each of the daughter cells?
Marina86 [1]
Mitosis is the process by which a parent cell divides into two daughter cells that are genetically identical to each other and to the parent cell. The parent cell of 10 chromosomes will end up becoming two daughter cells that each have a copy of those 10 chromosomes.
Hope this helps! :)
5 0
3 years ago
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