<span>Additional facts:
A test cross between an organism whose genotype for a certain trait is unknown and an organism that is homozygous recessive for that trait so the unknown genotype can be determined from that of the offspring.
Answer:
You'd use it when you wish to see if the one that you think is a homozygous dominant is a purebred, because if you did get a recessive offspring then it proves that the animal is a heterozygous and not a purebred.</span>
<span>The giraffe population in Africa has dropped about 40 percent in just 15 years, according to the GiraffeConservation Foundation. The organization's director, Dr. Julian Fennessy, told ABC News: "It's a silent extinction," noting that giraffe numbers have fallen to 80,000 from 140,000
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I think the answer is d.mutation.
Answer:
One end of the tRNA binds to a specific amino acid (amino acid attachment site) and the other end has an anticodon that will bind to an mRNA codon.
Explanation:
A. Released from the body through menstruation
