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HON Melanin 1 Review

Total questions: 42

Worksheet time: 1hrs 24mins

Name
Class
Date
1.

An organism is a hybrid genotype (Tt) but is appears tall instead of short.

a)

Law of Dominance

b)

Law of Segregation

c)

Law of Independent Assortment

2.

If your genotype is Bb, then you can only pass a B or b to your child but you can't pass both.

a)

Law of Dominance

b)

Law of Segregation

c)

Law of Independent Assortment

3.

Person A is smart and has brown hair while Person B is also smart but has blonde hair.

a)

Law of Dominance

b)

Law of Segregation

c)

Law of Independent Assortment

4.

One gene for the type of earlobes a person will have will be in each gamete.

a)

Law of Dominance

b)

Law of Independent Assortment

c)

Law of Segregation

5.

Which of Mendel's laws states that alleles are distributed to gametes independent of one another?

a)

Law of Dominance

b)

Law of Segregation

c)

Law of Independent Assortment

6.

If a dominant allele is present, the trait will always appear in the organism.

a)

Law of Segregation

b)

Law of Dominance

c)

Law of Independent Assortment

7.

This type of inheritance pattern is a Blend of both traits.

a)

incomplete dominance

b)

co-dominance

c)

complete dominance

d)

recessive pattern

8.
How many PAIRS of chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
9.

This is an example of ___________?

a)

Incomplete dominance

b)

Co-Dominance

c)

Sex-linked inheritance

d)

Autosomal recessive inheritance

10.

What is the phenotype of a person with the genotype AO?

a)

type A

b)

type O

c)

AA

d)

OO

11.
An organism's genetic make-up:
a)
phenotype
b)
genotype
c)
dominant
d)
recessive
12.
An organism's appearance or other observable characteristics:
a)
phentoype
b)
genotype
c)
recessive
d)
dominant
13.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
BB
14.
What is another way of saying "purebred"?
a)
homozygous
b)
dominant
c)
recessive
d)
heterozygous
15.
The range of human skin colors is caused by a variety of genes, each of which has at least 2 alleles.  This is an example of:
a)
incomplete dominance
b)
codominance
c)
multiple alleles
d)
polygenic inheritance
16.

this image is an example of

a)

codominance

b)

dominance

c)

incomplete dominance

d)

polygenic dominance

17.
Which of the following genotypes belongs in the red box in the Punnett square?
a)
XBXB
b)
XbXb
c)
XbY
d)
XBY
18.

Roan cattle show co-dominance for the color of their hair. There are alleles for red hair and white hair. What would you expect a heterozygous roan bull to look like if the trait showed incomplete dominance instead?

a)

It would be red.

b)

It would be white.

c)

It would be spotted.

d)

It would be pink.

19.

If an organism’s diploid number is 12, its haploid number is

a)

12

b)

6

c)

24

d)

3

20.

What is occurring in the figure?

a)

independent assortment

b)

anaphase I of meiosis

c)

crossing-over

d)

replication

21.

Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).


Cross a red flower with a speckled flower. What is the phenotypic ratio?

a)

2 red, 2 speckled

b)

2 red, 2 blue

c)

2 blue, 2 speckled

22.

Labrador retriever's fur color is an example of epistasis. In this case the E gene controls the expression of the B gene. It a puppy was born with the genotype eeBB its fur color would be ________ and if it was born with the genotype EEbb it would be __________

a)

yellow, yellow

b)

yellow, black

c)

chocolate, black

d)

yellow, chocolate

23.

Which of the following inheritance patterns explains how a particular version of a regulatory gene can activate or deactivate a gene that controls a particular trait?

a)

codominance

b)

pleiotropy

c)

epistasis

d)

incomplete dominance

24.

Complete a Punnett Square for TT and tt.

a)

50% are TT and 50% are tt

b)

100% Tt

c)

25% TT, 50% Tt, 25% tt

d)

none of the above

25.

Jim and Jane are both heterozygous for being tall. What are the chances that they will have a short child?

a)

100%

b)

50%

c)

25%

d)

75%

26.

A _________ trait is a trait hidden by the dominant gene.

a)

dominant

b)

recessive

c)

homozygous

d)

heterozygous

27.
What goes in box 3
a)
Aabb
b)
AABB
c)
AAbb
d)
aaBb
28.

What goes in box 15

a)

aabb

b)

AABB

c)

aaBB

d)

AAbb

29.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
30.

A white mouse with red eyes is crossed with a black mouse with brown eyes. The white mouse is recessive for both of its traits. The black mouse is dominant for both of its traits.

This cross would be

a)

BBEE x bbee

b)

BBEe x BbEe

c)

BbEE x BbEe

d)

BBee x BBEE

31.
Which sex chromosomes would indicate a typical human male?
a)
XX
b)
X
c)
XY
d)
XXY
32.
A pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called
a)
sister chromotids
b)
centromeres
c)
homologous chromosomes
d)
autosomes
33.
A pair of chromosomes that consists of  XX is  a __________________.
a)
Male
b)
Female
34.
Determine the sex of the individual whose karyotype is displayed in the image.
a)
female
b)
male
35.
If two parents have type AB blood, what is the probability that their child will have type O blood?
a)
0%
b)
25%
c)
50%
d)
100%
36.
If a father is AA and a mother is AB, what is the probability for a child with AB blood? 
a)
0%
b)
25%
c)
50%
d)
75%
37.

If a father is IA IA and a mother is IA IB, what is the probability for a child with AB blood type?

a)

0%

b)

25%

c)

50%

d)

75%

38.
A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?
a)
0%
b)
25%
c)
50%
d)
100%
39.
In mice, the homozygous mice are black and white. The heterozygous mice are gray. What pattern of inheritance is expressed in fur color in mice?
a)
complete dominance and recessiveness
b)
co-dominance
c)
incomplete dominance
d)
pleiotropy
40.
Which choice best represents the genotype of this cross?
a)
1 Yy: 2 yy: 0 YY
b)
2 Yy: 2 yy: 0 YY
c)
3 Yy: 1 yy: 0 YY
d)
1 Yy: 3 yy: 0 YY
41.
If you have a parent who has GgBb as their genotype, what are the possible alleles they could donate to their gametes?
a)
GB, Gb, gB, gb
b)
GB, GB, gb, gb
c)
Gb, Gb, Gb, GB
d)
GG, BB, gg, bb
42.
What type of inheritance is shown?
a)
complete
b)
incomplete
c)
codominance
d)
sex-linked

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