7. Genetics

Question 1

monohybrids

Answer 1

heterozygotes

Question 2

law of segregation

Answer 2

during gamete formation, two alleles for a heritable character segregate/separate from each other and end up in different gametes

Question 3

law of independent assortment

Answer 3

each pair of alleles segregate independently of any other pair of alleles during gamete formation

Question 4

Tay-Sachs disease

Answer 4

autosomal recessive

Question 5

pleiotropy is responsible for:

Answer 5

cystic fibrosis
sickle-cell disease

both- autosomal recessive

Question 6

Huntington’s disease

Answer 6

autosomal dominant

Question 7

genomic imprinting

Answer 7

the passage of an allele to the zygote DEPENDS on the sex of the parent that transmits it

Question 8

monosomic chromosomal formula

Answer 8

2n-1

Question 9

trisomic ch formula

Answer 9

2n+1 / 1 chromosome is in 3 copies

Question 10

Down syndrome

Answer 10

trisomic (aneuploidic)
one extra chromosome 21
(46+21)

Question 11

Klinefelter

Answer 11

XXY/ aneuploidy

Question 12

Trisomy X

Answer 12

XXX/ aneuploidy

Question 13

Turner syndrome

Answer 13

Monosomy X
44X0

Question 14

which chromosomal structure mutations have the highest chance of occurring during meiosis?

Answer 14

deletion
duplication