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kow [346]
3 years ago
8

If a DNA molecule is compared to a spirtual staircase, what parts make up steps?

Biology
1 answer:
Gnesinka [82]3 years ago
3 0

The answer for this question is pairs of nitrogen bases

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PLEASE HELP I NEEDED IT ASAP !!! I give brainliest!!!!!
Ray Of Light [21]

Answer:

C

Explanation:

because it is. because it is. 1 +2 = 3 right and c is the 3rd letter in the alphabet so it is c

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How does artificial selection supports Darwin's hypothesis ​
dimulka [17.4K]

It helped him because you can breed certain traits you want in things to get the traits you want

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How does crossing over in meiosis result in genetic variation?
Aneli [31]

Cross over is the first  way genes are shuffled to give rise to genetic diversity. Cross over takes place in sexual  reproduction.  The normal way that cross over occurs is chromosomes line up side by side and break off pieces of themselves, then trade those pieces with each other.

If they break the pieces at the same locus in the sequence of base pairs, the result is an exchange of genes called  genetic recombination and it ensures that the daughter cells produced  have a different genetic makeup from the parent cell and thus diversity occurs.

  

8 0
3 years ago
In genetics, the dash symbol (–) is a "wild card" that stands for either the dominant allele or the recessive allele; for exampl
german

Answer:

 12     :    3      :    1

white : yellow : green

Explanation:

Given that genes A and B control the fruit colour in following ways:

A_B_ or A_bb = white

aaB_ = yellow

aabb =  green

The genes undergo independent assortment so:

AaBb X AaBb =

A_B_ : A_bb : aaB_ : aabb

  9     :    3     :   3      :   1

white : white : yellow: green

        12          :    3     :   1

Hence, ratio of white : yellow : green is 12: 3: 1

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A patient has sustained a severe injury to the temporal lobe auditory association area. a nursing diagnosis the nurse should con
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internal part of ear.........
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