Genetics

Question 1

complete dominance

Answer 1

dominant allele has the same phenotypic effect whether it’s present in 1 or 2 copies (BB will have the same phenotype as Bb)

Question 2

Incomplete dominanace

Answer 2

Heterozygotes have their own genotype (ex red and white flowers produce pink heterozygotes)

Question 3

epistasis

Answer 3

a gene on one locus affects the phenotypic expression of a gene on another locus (one gene encodes for lab colour another gene codes for whether this colour will be expressed or not)

Question 4

sex-linked inheritence

Answer 4

genes present on sex chromosomes will have unique inheritance patterns, male traits rely souly on the gene given by the mother while females have an extra X and are able mask the ressesive allele easier

Question 5

How many X chromosomes are active in the female body?

Answer 5

1 the other is shut off at random early on in mitotic division. (called a barr body)

Question 6

What are linked genes?

Answer 6

genes that are near eachother on the chromosome will be inherited together.