Test 3: Ch. 14 Genetics

Question 1

who is the father of genetics?

Answer 1

gregor mendel

Question 2

what has the father of genetic’s occupation?

Answer 2

monk

Question 3

Significance of Gregor Mendel?

Answer 3

1) he worked with pea plants via cross pollinate
2) mid to late 1800s
3) 7 pea traits
4) published his work
5) died in obscurity
6) work discovered in 1900

Question 4

name three of the 7 pea traits that Mendel worked with?

Answer 4

a) pea traits
b) color of bloom
c) texture of pea

Question 5

what is a gene?

Answer 5

segment of DNA responsible for a specific trait

Question 6

what is an allele?

Answer 6

alternate forms of the same gene

ex) wrinkled vs. smooth

Question 7

what is homozygous?

Answer 7

2 alleles that are identical

Question 8

what is heterozygous?

Answer 8

2 different alleles for same trait

Question 9

what is one copy of an allele is enough to get expression of that trait

Answer 9

dominant

Question 10

what needs 2 copies for expression

*but can be masked by a dominate allele

Answer 10

recessive

Question 11

what is an allele that you have inherited

Answer 11

genotype

Question 12

what is an outward expression of alleles?

Answer 12

phenotype

Question 13

what kind of cross does it deal with one gene?

Answer 13

monohybrid cross

Question 14

always use the first letter of the dominant or recessive trait?

Answer 14

dominant

Question 15

KNOW HOW TO DO A MONOHYBRID CROSS

Answer 15

what are they?!?!?!

Question 16

what are the steps?

Answer 16

P, G1, F1, G2, G2

Question 17

when do homologs separate?

Answer 17

meiosis

Question 18

what kind of cross have 2 genes?

Answer 18

dihybrid cross

Question 19

KNOW HOW TO DO A DIHYBRID CROSS

Answer 19

look at them notes!