Chapter 14

Question 0

What was the most significant completion the Gregor Mandel Drew from his experiment with pea plants

Answer 0

Traits are inherited and discrete units and I’m not results of blending

Question 1

What do we mean when we use the terms mono hybrid cross and dihybrid cross

Answer 1

A dihybrid cross involves organisms that are heterozygous for two characters that are being studied a mono hybrid cross involves organisms that are heterozygous for only one character being studied

Question 2

How many do you need Gammys could be produced do independent assortment by an individual with the genotype AaBbCCDdEE

Answer 2

8

Question 3

The individual with genotype AaBbCCDdEE can make many kinds of gametes which of the following is a major reason

Answer 3

Different possible assortment for chromosomes into gametes

Question 4

Mendel continued some of this experiment into the F2 or f3 generations to

Answer 4

Observe whether or not a recessive trait would reappear

Question 5

Which of the following statements about independent assortment and segregation is correct

Answer 5

The law of independent assortment requires describing two or more genes relative to one another

Question 6

A sexually reproducing animal has 2 unlinked genes one for head shape and one for tail length its genotype is HhTt which of the following genotypes is possible in the gamete from this organism

Answer 6

HT

Question 7

Mendel accounted for the observation that trade had disappeared in the F1 generation reappeared in the F2 generation by proposing that

Answer 7

Traits can be dominant or recessive and the recessive traits where obscured by the dominant one in the F1

Question 8

The fact that all seven at the Pea plants traits studied by Mendel obeyed the principle of independent assortment most probably indicates which of the following

Answer 8

Anaphase one of meiosis

Question 9

Mendels second law of independent assortment has its basis in which of the following events of meiosis one

Answer 9

Alignment of tetrads at the equator

Question 10

Which of the following boxes marked one through four correspond to the plants with dark leaves

Answer 10

1 2 3

Question 11

Which of the following boxes marked one through four correspond to plants with heterozygous genotype

Answer 11

2 3

Question 12

Which of the boxes marked one - four correspond to plants that will be true breeding

Answer 12

1 4

Question 13

Skin color and certain species of fish is inherited via a single gene with four different alleles how many different types of gametes would be possible in the system

Answer 13

4

Question 14

Why did the F1 offspring of Mendels classic Pea cross always look like one of the two parental varieties

Answer 14

One allele is dominant

Question 15

Mendel crossed yellow seed and green seed P plants and then allowed the offspring to self pollinate to produce an F2 generation the results were as follows 6022 yellow and 2001 Green be a little for the green seed has what relationship to the allele for the yellow seed

Answer 15

Recessive

Question 16

Albinism isn’t autosomal not sex linked recessive trait a minute no women are both of normal pigmentation but both have one parent without Bino what is the probability that their first child will be albino

Answer 16

one fourth

Question 17

Albinism is autosomal recessive trait a minute to limit our birth of normal pigmentation and have one child out of three who is albino what are the genotypes of the albino parents

Answer 17

Both parents must be heterozygous

Question 18

A black guinea pig cross with the albino guinea pig produce 12 blackouts ring when the albinos cross with the second black animal six black and six albinos were obtained what is the best explanation for this genetic situation

Answer 18

Albino no it’s recessive black is dominant

Question 19

Gray colors and peas is dominant to white assume that Mendel conducted a series of experiments were plans with gray seeds were crossed a month himself in the following progeny were produced 302 gray and 98 white

A) what is the most probable genotype of each parent
B)based on your answers in a Which genotypic and phenotypic ratio is expected in this progenies

Answer 19

Gg * Gg genotype 1:2:1 phenotypic 3:1

Question 20

When Mendel crossed the yellow seeded and green seeded all the offspring were yellow and he looked at the F1 yellow seed plant and crossed them to green seeded plant what genotypic Ratio was expected

Answer 20

1:1

Question 21

Black for in mice B is dominant to Brown for being short tails T are dominant to longtail fraction of the prodigy of Crosses BbTt * BBtt will be expected to have black fur and long tails

Answer 21

1/2

Question 22

In certain plants tallest on it to short of a heterozygous plant is crossed with the homozygous to plant what is the probability that the offspring will be short

Answer 22

0

Question 23

In the cross AaBbCc * AaBbCc what is the probability of producing the genotype AABBCC

Answer 23

1/64

Question 24

Given the parents AABBCc * AAbbCc assume simple dominance for each trait and independent assortment what proportion of the progeny will be expected to phenotypically resembled the first parent with the genotype AABBCc

Answer 24

3/4

Question 25

Which of the following is the best statement of the use of the addition rule of probability

Answer 25

The probability that either one of the two independent events will occur