Chapter 14 -1

Question 1

Humans have how many homologous pairs?

Answer 1

23 (22 autosomes &1 sex chromosomes

Question 2

What happens in Autosomal Dominance Inheritance?

Answer 2

complete dominance and inherit dominant allele

Question 3

Achondroplasia and Huninghton’s disease are examples of?

Answer 3

autosomal dominance inheritance

Question 4

What is autosomal recessive inheritance?

Answer 4

inheritance of 2 recessive alleles

Question 5

Cystic fibrosis and sickle cell disease are examples of?

Answer 5

autosomal recessive inheritance

Question 6

Heterozygotes maintain what in populations?

Answer 6

recessive alleles

Question 7

What are carriers?

Answer 7

they carry the disorders but do not express it

Question 8

Tay sachs is a what?

Answer 8

carrier

Question 9

What is genetic counseling and screening used to determine?

Answer 9

probable offspring

Question 10

Disorders are mostly?

Answer 10

recessive

Question 11

What are examples of recessive disorders?

Answer 11

color blindness, hemophilia, & duchenne muscular dystrophy

Question 12

What is inheritance based on?

Answer 12

changes in chromosome structure

Question 13

What is duplication and what does it cause?

Answer 13

repeating segments/neural & physical problems

Question 14

What is deletion and what does it cause?

Answer 14

removal of segment/ cri-du-chat deletion on chromosome 5

Question 15

What is inversion and what does it cause?

Answer 15

segment revised/ not noticeable, affects fertility