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Romashka [77]
3 years ago
5

A gene on a chromosome lies close to another gene controlling a different trait. This indicates that the genes are _. The first

gene contributes to the expression of the second gene. This indicates _?
Biology
2 answers:
g100num [7]3 years ago
8 0
  • One gene on one chromosome is next to another gene that controls a different characteristic. This indicates that genes are <u>strongly linked</u>.  When the genes are very close on the same chromosome, they are said to be linked. This means that the alleles, or the gene versions, put together in a chromosome will be more often inherited as a unit than separately.
  • The first gene contributes to the expression of the second gene. This indicates <u>non-epistatic gene interaction </u>. We say that gene interaction is non-epistatic when two or more genes interact, but no allele prevents the expression of another, but the first gene contributes to the expression of the second gene.

umka2103 [35]3 years ago
7 0

My guess:

I do not know the options to the blanks, but I'd say that the answer to the first one is "strongly linked". Think of a chromosome as a phylogenic chart → 2 species that are beside each other are strongly linked, if compared to 2 species 3 spots apart form each other. So, 2 genes that are close to each other are strongly linked.

I do not know the options to the blanks, but I'd say the answer to the second one is epistasis → which is the interaction between two different genes (different means they're not linked alleles).

Hope it helped,

BioTeacher101

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