Plant, Animal, and Human Genetics

Question 1

Pedigree

Answer 1

a picture of a family history of a genetic condition that indicates generation, gender, birth order in the generation, and parental and offspring relationships; the presence of the condition is indicated by a blackened-in symbol

Question 2

Autosomal

Answer 2

a condition is autosomal if the pedigree shows no significant difference int he number of each gender affected by the condition

Question 3

Autosomal dominant

Answer 3

these conditions appear in each generation in the pedigree, and cannot arise from two parents who did not have the condition

Question 4

Autosomal recessive

Answer 4

these conditions often skip a generation in a pedigree and are indicated if two parents without the condition produce a child with the condition

Question 5

X-linked recessive

Answer 5

a condition is X-linked recessive if the pedigree shows the condition is found in males significantly more than in females; carrier mom passes the allele to affected sons; affected sons cannot pass the allele to their sons, but pass it to their daughters, who in turn become carriers

Question 6

X-linked dominant

Answer 6

a condition is X-linked dominant if the pedigree shows the condition is found in fmeales significantly more than in males