Genetics Chap 6

Question 1

Autosomal inheritance

Answer 1

inheritance of traits based on the 22 normal chromosomes

Question 2

Autosomal dominant

Answer 2

condition/trait that you have if you have even a single allele that’s dominant

Question 3

Autosomal recessive

Answer 3

condition/trait that you have if you have both copies of the allele (homozygous recessive)
both copies present and trait is expressed
-one copy=carrier

Question 4

Incomplete dominance

Answer 4

When two or more genes are partially expressed, so neither are complete in cancelling each other out and you end up with a weird mix
ex: white and red flower make pink

Question 5

Codominance
They share the dominance

Answer 5

Two versions of an allele are expressed separately and show different results like a red and white cow
both alleles are dominance

Question 6

Continuous variation

Answer 6

a range in variation of one trait because many genes are active. ex: There isn’t tall and short, there’s many heights in between

Question 7

Polygenic trait

Answer 7

trait that is controlled by more than one gene

Question 8

Sex-linked trait

Answer 8

a trait controlled by genes on the x and y chromosomes
male only has to inherit one to be affected, female needs both to be affected

Question 9

Linked genes

Answer 9

genes that are on the same chromosome and tend to be passed down together