exam ch 10

Question 1

if the cross from #1 is continued, what would be the expected outcome in the F2 generation

Answer 1

3 tall 1 short

Question 2

if a plant that has round seeds has a parent that has wrinkled seeds, what is its genotype (assume round is dominate)

Answer 2

Rr

Question 3

this principle states that alleles separate during gametes formation:

Answer 3

principle of independent assortment

Question 4

if you crossed two heterozygous plants, how many of the offspring will also be heterozygous

Answer 4

half

Question 5

a plant that has purple flowers is crossed with one that has white flowers. the offspring were half white and half purple. what were the genotypes of the parents

Answer 5

Pp x pp

Question 6

a dihybrid cross (AaBb x AaBb) will result in what offspring ration?

Answer 6

9:3:3:1

Question 7

phenotype refers to an organisms:

Answer 7

physical appearance

Question 8

in each case where mendel crossed true breeding plants as parents, the offspring displayed only one of the two traits see. in the parents. the observation supports which principle of genetics?

Answer 8

dominance and recessiveness

Question 9

two true breeding parents are crossed similar to mendels P generation. A tall plant is crossed with a short plant. what is the expected outcome for the F1 generation

Answer 9

all tall

Question 10

which of the following outcomes would you expect from the following cross: tall, round (TTRR) x short, wrinkled (ttrr)

Answer 10

9:3:3:1

Question 11

meiosis results in____

Answer 11

4 haploid daughter cells

Question 12

which of the following cells undergo meiosis?

Answer 12

sperm cells

Question 13

crossing over occurs during:

Answer 13

prophase 1

Question 14

meiosis is a type of cell division that produces:

Answer 14

gametes

Question 15

which of the following distinguishes prophase 1of meiosis from prophase of mitsois

Answer 15

homogenous chromosomes paired up

Question 16

a cell w a diploid number 24 undergoes meiosis, how many chromosomes are in each daughter cell

Answer 16

12

Question 17

meiosis

Answer 17

gametes are products by the process of what?

Question 18

sperm

Answer 18

the cells resukting from a male are called what?

Question 19

haploid cells

Answer 19

unlike. mitosis, meiosis results in the formation of what

Question 20

which symbol is used to represent the number of chromosomes in a gamete?

Answer 20

n

Question 21

name the person known as the “father of genetics”

Answer 21

gregor mendel

Question 22

which term refers to the outward expression of an allele pair

Answer 22

phenotype

Question 23

segments of dna that control the production of proteins is called

Answer 23

genes

Question 24

what is the term for a pair of chromosomes that have the same length same center-mere position and carry genes that control the same traits

Answer 24

homologous