Question

Investigators examined the expression of transporter mRNA and protein produced in zebrafish homozygous for each of the alleles and found the results summarized below (+ = present, − = absent). Does the allele associated with light color appear to be altering transcription or translation? Why? transcription
This is because the end product of transcription is RNA, and no RNA is produced in individuals homozygous for the light-color allele.

Answer 1

The matching mRNA is missing in homozygous zebrafish because the allele with the light color appears to be changing transcription.

In terms of genetics, being homozygous means that you have inherited the identical alleles of a particular genomic marker from both of your biological parents. As a result, a person who possesses two diploid identical copies of a genetic marker is said to be homozygous. A person who possesses two copies of a certain marker, however, is said to be heterozygous. Homozygous. In a pair of chromosomes called a locus, there are two alleles of each trait or gene in a diploid animal. One is a result of the father, and the other is a result of the mother.

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