Here, the letter "Y" refers to transcription, while the letter "Z" refers to translation.
<h3>What do you mean by Transcription?</h3>
Transcription may be defined as a biological process through which a cell makes a copy of RNA (mRNA) from a segment of DNA. It occurs in the nucleus of the cell.
Translation may be defined as a biological process through which a cell makes proteins with the help of genetic information carried by mRNA. It occurs in the cytoplasm of the cell.
Therefore, here, the letter "Y" refers to transcription, while the letter "Z" refers to translation.
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Answer: Option a) the frequency of the homozygous dominants will go down, the frequency of the heterozygous genotype will go down, and the frequency of the homozygous recessives will go up
Explanation: Another name for gene frequency is the allele frequency. It is the percentage of any chromosomes in the population that contains that particular gene or allele. It also shows the genetic diversity that can present in a species.
Fossil evidence suggests that the tiktaalik had lungs, which meant that it could breathe in air, instead of just water.
This trait allowed the tiktaalik to survive despite the low oxygen content of the shallow water because the tiktaalik would simply get its oxygen from the air. This selective advantage was passed on to the tiktaalik's offspring and over time, more amphibious creatures evolved with the ability to survive both on land and in water.
