wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Genetics Ch 12 Review

Total questions: 44

Worksheet time: 39mins

Name
Class
Date
1.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
2.
The chromosomes that pair up during meiosis, are called __________ chromosomes.  
a)
homozygous 
b)
asexual
c)
homologous
d)
genes
3.
A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?
a)
20
b)
40
c)
80
d)
160
4.
Compared to the number of chromosomes contained in a body cell, how many chromosomes would normally be contained in a gamete?
a)
The same number
b)
One-fourth as many
c)
Twice as many
d)
Half as many
5.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
6.
A human being has a somatic cell that has 46 chromosomes.  What is the haploid number found in a gamete?
a)
23
b)
46
c)
69
d)
92
7.
Which of the following cell types is formed by meiosis?
a)
muscle cells
b)
skin cells
c)
sperm cells
d)
blood cells
8.
Which process is necessary for the inherited traits of an organism to be passed along by sexual reproduction?
a)
mitosis
b)
meiosis
c)
mutation
d)
fission
9.
Which best describes the process shown?
a)
nondisjunction
b)
mitosis
c)
independent assortment
d)
crossing over
10.
How many times in meiosis does the cell divide?
a)
2
b)
4
c)
3
d)
1
11.
How many daughter cells are produced at the end of meiosis?
a)
1
b)
2
c)
3
d)
4
12.
The result of meiosis is ______.
a)
two diploid cells
b)
two haploid cells
c)
four diploid cells
d)
four haploid cells
13.

What phase of Meiosis is the picture showing?

a)

Metaphase I

b)

Telophase I

c)

Anaphase II

d)

Telophase II

14.

The instruction of one allele covers up the instruction

of the other allele in a homologous pair. Symbolized by a capital letter.

a)

Recessive Allele

b)

Dominant Allele

c)

Heredity

d)

Trait

15.

The letter symbols for both homologous alleles.

BB Bb bb AA Aa aa

a)

Genotype

b)

Phenotype

c)

Recessive

d)

Dominant

16.

The observable traits dictated by the genotype

a)

Phenotype

b)

Genotype

c)

Homozygous Recessive

d)

Homozygous Dominant

17.

During meiosis and gamete formation, homologous (paired up) alleles split up

a)

Phenotype

b)

Law of Segregation

c)

Genotype

d)

Dihybrid Cross

18.

During meiosis, the homologous pairs of chromosomes and the matching alleles are lined up independently.

Offspring are a mix of maternal genes and paternal genes.

This increases genetic variation.

a)

Homozygous Dominant

b)

Law of Segregation

c)

Crossing Over

d)

Independent Assortment

19.

A _______ is an alternative form a gene.

a)

chromosome

b)

sister chromatid

c)

allele

d)

telomere

20.

a trait that is masked unless 2 copies are present is ________________________

a)

recessive

b)

dominant

c)

weak

d)

hidden

21.

alleles for a trait that are the different

a)

Homozygous

b)

Heterozygous

c)

Quasizygous

d)

Juxtazygous

22.

What genotype is homozygous dominant?

a)

RR

b)

Rr

c)

rr

23.

What genotype is heterozygous?

a)

RR

b)

Rr

c)

rr

24.
If green is dominant over purple, then what is the genotype for this individual?
a)
Purple
b)
Green
c)
GG
d)
gg
25.
What is the genotype for this organism?
(E= 3 eyes, e= 1 eye)
a)
EE
b)
Ee
c)
ee
d)
EE or Ee
26.
If this image were real, it would represent what type of inheritance?
a)
incomplete dominance
b)
codominance
c)
polygenic inheritance
d)
compete dominance
27.
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%
28.
Snap dragon color is a incomplete dominant trait.  A red flower (RR) is crossed with white flower (rr)? What color are flowers that are Rr?
a)
Red
b)
Red and White
c)
White
d)
Pink
29.
How are Incomplete Dominance and Co Dominance different than a normal Mendelian cross?
a)
There is no difference
b)
The heterozygous genotype has a unique phenotype
c)
There is no heterozygous genotype
d)
There is only one phenotype regardless of genotype.
30.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
31.
When you cross a true-breeding yellow seed plant with true-breeding green seed plant, and all of the resulting offspring are green seed plants, this means
a)
the allele for green seed plants is dominant
b)
the allele for yellow seed plants is dominant
c)
the allele for green seed plants is recessive
d)
they are homozygous like their parents
32.
What is the genotypic ratio in this cross?
R= round r= wrinkled
a)
3:1 (3 round to 1 wrinkled)
b)
1:2:1 (1 RR, 2 Rr, 1 rr)
c)
75% round, 25% wrinkled
d)
1:3 (1 round to 3 wrinkled)
33.
How many alleles does an individual have for each trait?
a)
1
b)
2
c)
3
d)
4
34.

The parent flowers could both be described as ____

a)

homozygous recessive

b)

homozygous dominant

c)

heterozygous

d)

phenotypes

35.

The punnett square is used to tell the color of a frogs skin. "G" means green skin and "g" means brown skin. What is the chance the baby frogs will have brown skin?

a)

0%

b)

25%

c)

50%

d)

100%

36.

What is the mother's genotype?

a)

DD

b)

Dd

c)

dd

37.
What is the dominant trait?
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
d)
Jolly green giant
38.
Black fur is dominant (B) over white fur (b).  Find the probability of heterozygous offspring using the following genotype of these parents.
Bb + bb
a)
0%
b)
25%
c)
50%
d)
100%
39.
What would be the results of a genetic cross between the following parents?  TT + Tt
a)
Tt, tt, tt, tt
b)
TT, TT, TT, Tt
c)
Tt, Tt, Tt, TT
d)
TT, TT, Tt, Tt
40.

If A = red fur and a = white fur, what are the PHENOTYPIC ratios of the offspring based on the Punnett Square?

a)

25% heterozygous

b)

50% purple

c)

75% red fur and 25% white fur

d)

25% homozygous recessive, 50% heterozygous, 25% homozygous dominant

41.

Punnett Square: A man is homozygous for the B allele, and a woman is type O. What are ALL the possible blood types of their baby?

a)

IᴮIᴮ

b)

ii

c)

IᴬIᴬ

d)

Iᴮi

42.

Punnett Square: Type AB father and type O mother. What are the percentages of each offspring?

a)

Type A: 50%, Type B 0%, Type AB 50%, Type 0 0%

b)

Type A: 50%, Type B 50%, Type AB 0%, Type 0 0%

c)

Type A: 25%, Type B 25%, Type AB 25%, Type 0 25%

d)

Type A: 0%, Type B 0%, Type AB 50%, Type 0 50%

43.

Two parents think THEIR baby was switched at the hospital. Lulu (mom) has blood type A, and Caesar (dad) has blood type B. The baby has blood type AB. Could the baby actually be theirs?

a)

No, because neither parent's genotype matches the baby

b)

No because the mom is only Type A

c)

Yes because both parents have type A and Type B

d)

Yes because if mom is A and dad is B - the baby could have genotype AB

44.
Hemophilia is a sex-linked recessive disorder. A woman with hemophilia marries an unaffected man whose father had hemophilia. What percentage of their daughters will have hemophilia?
a)
0%
b)
25%
c)
50%
d)
100%

Similar Resources on Wayground

Pre-VCE Biology EXAM Revision

49 questions

Pre-VCE Biology EXAM Revision

quiz

Worksheet

•

10th Grade

Chemistry of Life

41 questions

Chemistry of Life

quiz

Worksheet

•

10th - 12th Grade

Biology

39 questions

Biology

quiz

Worksheet

•

9th - 10th Grade

Human Psychological Development

39 questions

Human Psychological Development

quiz

Worksheet

•

11th Grade

Biology Unit 2: Ecology

41 questions

Biology Unit 2: Ecology

quiz

Worksheet

•

9th Grade

Year 9 - Moving and Shaking Recap 2

49 questions

Year 9 - Moving and Shaking Recap 2

quiz

Worksheet

•

9th Grade