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Neporo4naja [7]
3 years ago
5

Favorable variatons are determined by environmental conditions and pressures

Biology
1 answer:
mrs_skeptik [129]3 years ago
3 0
I think natural selection
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If an individual has genotype Dd, what are they?
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Heterozygous dominant

Explanation:

because, as you know, heterozygous is different, and Dd has both dominant and recessive, making it heterozygous rather than homozygous.

Because the first d is dominant (capital D), then it makes the genotype dominant and heterozygous.

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What does a seismograph record?
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If a patient has br with brp, when should the patient be allowed out of bed?
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What is the sequence of events in the transmission of an impulse through the heart muscle?
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c, d, a, b, f, g, e

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A summer squash plant that produces disc‑shaped fruit is crossed with a summer squash plant that produces long fruit. All of the
ivanzaharov [21]

Explanation:

In the given question,

suppose allele A and a determines the color of the fruit whereas allele B and b determines the shape of the fruit.

The genotype for white, disc shape fruits is- AABB

the genotype for yellow, long fruits is- aabb

F1 progeny will be- AABB x aabb

                                 AaBb

F2 cross-    AaBb    x    AaBb

                      AB          Ab          aB           ab

      AB        <em>AABB       AABb    AaBB       AaBb</em>

      Ab       <em>AABb       AAbb     AaBb       Aabb</em>

      aB      <em>  AaBB      AaBb      aaBB       aaBb</em>

      ab        <em>AaBb       Aabb      aaBb      aabb</em>

          The genotype of F2 cross are-

1.  9/16 A- B- disc-shaped (like F1)

2. 3/16 A- bb spherical

3. 3/16 aa B- spherical

4. 1/16 aa bb long.

       

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