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Question 1

Morgan showed that Mendelian inheritance has its physical basis in the …?

Answer 1

Behavior of chromosomes

Question 2

What is the location of Mendel’s heritable factors?

Answer 2

Chromosomes

Question 3

How many chromosomes does a fly have?

Answer 3

4

Question 4

Wild type

Answer 4

Normal phenotypes that were common in populations

Question 5

Traits alternative to the wild type are called what?

Answer 5

Mutant phenotypes

Question 6

White-eyes mutant allele must be located on the …?

Answer 6

X chromosome

Question 7

What exhibits unique patterns of inheritance?

Answer 7

Sex-linked genes

Question 8

In humans and some other animals there is a _____ ____ of sex determination

Answer 8

Chromosomal basis

Question 9

Only the ends of the Y chromosome have regions that are ….?

Answer 9

Homologous

Question 10

Shot segments at the ends of the Y chromosomes are homologous with eh X allowing the 2 to behave like homologues during ….?

Answer 10

Meiosis in males

Question 11

How many copies of an allele does a female need?

Answer 11

2 (homozygous)

Question 12

How many copies of an allele does a male need?

Answer 12

1 (hemizygous)

Question 13

Chromosomal theory of inheritance

Answer 13

Genes are locates on chromosomes and that the behavior of chromosomes during Meiosis accounts for Mendel’s law of segregation and independent assortment

Question 14

X-linked recessive disorders are much more common in _____ rather and in ______

Answer 14

Males rather than in females