Answer by Mimiwhatsup: C. Convergent boundary
Why is this right: Convergent boundaries but also known as 'destructive' is a(n) region of active deformation( an act of deforming, or at the state of being deformed) which is where two or more tectonic plates or fragments of the lithosphere are near end of their life cycle.
Answer:
<u>risiysyoetistosi</u><u> </u><u>ektekydoyoyeo</u>
Answer:
Many of the elements of mental health are needed for everyday life. One aspect is having poise under pressure. It is also important to be able to deal with adversity and experience new situations. Lastly, sports help participants build their self-esteem.
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Full Question:</u></h2>
In the family tree below, people with the recessive trait of attached earlobes are shaded gray.
What must be true about the person labeled "A"?
A. It is a male with at least one dominant allele.
B. It is a male with two dominant alleles.
C. It is a female with at least one dominant allele.
D. It is a female with two dominant alleles.
<h2><u>Answer:</u></h2>
Its a male with atleast one dominant allele.
Option A.
<h3><u>Explanation:</u></h3>
The gene for the attached earlobe is recessive while the gene for the free earlobes is dominant. In the phylogenetic tree, we can see that both the father and mother aren't having attached earlobes. So both of them are having atleast one dominant allele which makes them have free earlobe.
In the F1 offsprings, one of the female and a male is having free earlobes. So both of them have atleast one dominant allele. The 2nd female is having an attached earlobe. So both the recessive allele have come form one parent each. So both of them are heterozygous.
Thus, the male marked as A atleast have one dominant allele. He can be a homozygous dominant, but the probability is 25%.