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Mendelian Genetics

More GeneticsProblems

Linked Genes

ChromosomalDisorders Bio Trivia

2

I 5

If a man with Huntington’s marries a normal female, what percentage of the offspring are

likely to have Huntington's?

3

I 5aIf a man with Huntington’s

marries a normal female, what percentage of the offspring are

likely to have Huntington's?

50%

4

I 10The ability of one gene to control the expression of another gene is known

as ____________.

5

I 10aThe ability of one gene to control the expression of another gene is known

as episatsis.

6

I 15In the cross: RrTt x

Rrtt, what is the probability of getting

an offpring that is dominant for both

traits?

7

I 15aIn the cross: RrTt x

Rrtt, what is the probability of getting

an offpring that is dominant for both

traits?¾ x ½ = 3/8

8

I 20

What is the probability of flipping a tails three times in a row?

9

I 20a

What is the probability of flipping a tails three times in a row?

½ x ½ x ½ = 1/8

10

I 25An AABb individual is mated with another AABb

individual. The possible number of genetically

different kinds of offspring is _____.

11

I 25aAn AABb individual is mated with another AABb

individual. The possible number of genetically

different kinds of offspring is 3.

12

II 5If one parent is blood type AB and the other is type O, what fraction of their offspring will be blood type A?

13

II 5aIf one parent is blood type AB and the other is type O, what fraction of their offspring will be blood type A?

½

14

II 10The result of the following cross indicates the orange eyes are _____ black eyes.

15

II 10aThe result of the following cross indicates the orange eyes are recessive to black eyes.

16

II 15If a parent is

AaBBCcddEe, how many different types

of gametes can it produce?

17

II 15aIf a parent is

AaBBCcddEe, how many different types

of gametes can it produce?

2 x 1 x 2 x 1 x 2 = 8

18

II 20A woman is A+ and has B- child. A father with this

blood type could NOT be the father:

A. A+B. B-C. AB +D. AB-

19

II 20aA woman is A+ and has B- child. A father with this

blood type could NOT be the father:

A. A+

20

II 25An organism homozygous for red color was crossed with an organism homozygous for blue color. The offspring were green. Two of the green organisms were crossed. What is (are) the expected phenotypes in this second group of offspring?

21

II 25aAn organism homozygous for red color was crossed with an organism homozygous for blue color. The offspring were green. Two of the green organisms were crossed. What is (are) the expected phenotypes in this second group of offspring?

1 Red: 2 green: 1 blue

22

III 5If two genes are linked _____.

a. they are on different chromosomes

b. they assort independently

c. they code for the same protein

d. they are on the same chromosome

23

III 5aIf two genes are linked _____.

d. they are on the same chromosome

24

III 10If a color-blind woman marries a man with normal vision, the female offspring will be __________, and the male offspring will be __________.

25

III 10aIf a color-blind woman marries a man with normal vision, the female offspring will be normal, and the male offspring will be color-blind.

26

III 15Four genes (A, B, C, and D) are on the same chromosome. The crossover frequencies below are obtained. What is the correct sequence of genes? A-B 19% A-D 21%B-C 14% C-D 16% A-C 5% B-D 2%

27

III 15a

Four genes (A, B, C, and D) are on the same chromosome. The crossover frequencies below are obtained. Which is the correct sequence of genes? A-B 19% A-D 21%B-C 14% C-D 16% A-C 5% B-D 2%

ACBD or DBCA

28

III 20A father (whose father was color-blind) and a normal

woman can produce:A. a color-blind son

B. a color-blind daughterC. no color-blind childrenD. sons that have a 50% chance of being color-blind.

29

III 20aA father (whose father was color-blind) and a normal

woman can produce:

C. no color-blind children

30

III 25In a particular species of mammal, black hair (B) is dominant to green hair (b), and red eyes (R) are dominant to white eyes (r). When a BbRr individual is mated with a bbrr individual, the observed offspring are: black-red 1,070; black-white 177; green-red 180; green-white 1,072. How far apart are the B and R genes?

31

III 25a

In a particular species of mammal, black hair (B) is dominant to green hair (b), and red eyes (R) are dominant to white eyes (r). When a BbRr individual is mated with a bbrr individual, the observed offspring are: black-red 1,070; black-white 177; green-red 180; green-white 1,072. How far apart are the B and R genes? 14.3 MU

32

IV 5A chart of

chromosomes in which they are arranged by

number is called a _________________.

33

IV 5aA chart of

chromosomes in which they are arranged by

number is called a karyotype.

34

IV 10

A male with a Barr body has what

disorder?

35

IV 10a

A male with a Barr body has what

disorder?Klinefelter’s Syndrome XXY

36

IV 15The exchange of parts between nonhomologous chromosomes

is called _____.

37

IV 15aThe exchange of parts between nonhomologous chromosomes

is called translocation.

38

IV 20The only known viable human monosomy is:

39

IV 20aThe only known viable human monosomy is Turner’s Syndrome.

40

IV 25If non-disjunction occurs in Meiosis I, what types of

gametes will be produced?A. n and n + 1B. n and n-1

C. n + 1 and n – 1D. n, n + 1, and n - 1

41

IV 25aIf non-disjunction occurs in Meiosis I, what types of

gametes will be produced?

C. n + 1 and n – 1

42

V 5Who am I?

a.Mendel b. Morgan

c. Kleinfelter d. Turner

43

V 5a

Who am I?

b. Thomas Hunt Morgan

44

V 10Ophioglossum reticulatum, a type of

fern, has the most chromosomes of any organism. How many

chromosomes does each cell have?

a. 110 b. 256

c.1260 d. 2448

45

V 10a• Polyploidy is a common conduction

in plants, but seemingly taken to its limits in the Ophioglossum

reticulatum. This fern has roughly 630 pairs of chromosomes or 1260

chromosomes per cell

46

V 15 What is this condition called?

47

V 15a Polydactyly

48

V 20If you read 5 bases/second, how long would it take you to read the entire human genome (without stopping)?

a.7 years b. 19 years

c. 48 years d. 87 years

49

V 20aIt would take 19 years to read aloud without stopping, at 5 bases per second, the entire sequence of the genome within the nucleus of the human embryo

50

V 25Why was Aberforth

Dumbledore prosecuted?

51

V 25aFor practicing inappropriate charms on a

goat