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Naddik [55]
3 years ago
11

The fact that the majority of human newborns weigh around 7 pounds is reflective of ________________.directional selection stabi

lizing selection disruptive selection advantageos selection
Biology
1 answer:
Virty [35]3 years ago
7 0
Your answer would be :


B) Stabilizing Selection

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Which part of the cell provides energy through the process of cellular respiration?
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John had unattached earlobes like his father, but his mother has attached earlobes. What is johns genotype with unattached being
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Genotype refers to the complete genetic make-up and can also be referred to as the alleles an organism carries on a particular gene.

John's genotype with unattached being dominant is Aa.

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Learn more about genotype: brainly.com/question/22117

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2 years ago
A species of salamander has two tail length phenotypes. Short tails are completely dominant over long tails. A scientists crosse
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D. If all of the offspring are short-tailed, the unknown individual is the homozygous dominant genotype.

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The short tail phenotype is completely dominant over the long tail phenotype. When a short tailed salamander with unknown genotype is crossed with a homozygous recessive long tailed salamander, the cross is called testcross. Lets assume that the allele "S" gives "short tail" phenotype while the allele "s" gives "long tail" phenotype.

If the "short tailed salamander" with unknown genotype is homozygous dominant (SS), the process of the testcross will express only dominant trait (cross 1). On the other hand, if the "short tailed salamander" with unknown genotype is heterozygous dominant (Ss), segregation of alleles during gamete formation would form two types of gametes (cross 2). The 50% progeny would express the "long tail" phenotype while rest 50% will express the "short tail" phenotype.

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