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Mendel and Meiosis

Total questions: 60

Worksheet time: 3600secs

Name
Class
Date
1.
The same gene can come in different varieties, the different version of a gene is called
a)
Dominant
b)
Chromosome
c)
Allele
d)
Recessive
2.

Which is the Dominant Allele in a genotype?

a)

a capital letter

b)

a lowercase letter

c)

a number

d)

the most common version in a population

3.
Which combination is Homozygous Dominant
a)
HH
b)
Hh
c)
hh
d)
hH
4.

Which Combination is Heterozygous

a)

AA

b)

Aa

c)

aa

d)

none of the above

5.

Which of the following cell types is formed by meiosis?

a)

muscle cells

b)

skin cells

c)

sperm and egg cells

d)

blood cells

6.
When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, ____ occurs.
a)
mutagenesis
b)
hybridization
c)
crossing over
d)
fertilization
7.

Another word for heterozygous is

a)

purebred

b)

hybrid

c)

dominant

d)

recessive

8.

A diploid carrot cell has 18 chromosomes, so the haploid carrot pollen grain contains

a)

18 chromosomes

b)

9 chromosomes

c)

27 chromosomes

d)

None of the above

9.
Who is the "Father of Genetics"
a)
Gregor Mendel
b)
Leoric Book
c)
Charles Darwin
d)
Malcolm Reynolds
10.
A chart to determine potential genetic outcomes of offspring is called a 
a)
Karyotype
b)
Punnett Square
c)
Di-hybrid Cross
d)
Pedigree
11.
Mitosis results in:
a)
2 cells, each haploid
b)
4 cells each diploid
c)
4 cells each haploid
d)
2 cells each diploid
12.
When does crossing-over occur?
a)
Metaphase 1
b)
Prophase 2
c)
Prophase 1
d)
Metaphase 2
13.
Which parent is purebred?
a)
GG
b)
Gg
c)
GS
d)
Gs
14.
Which Combination is Heterozygous
a)
WW
b)
Ww
c)
ww
15.
What is the genotype of the blue eyed parent?
a)
BB
b)
Bb
c)
bb
16.
What are the parent's Genotypes?
a)
Bb x Bb
b)
BB x Bb
c)
BB x bb
d)
Bb x Bb
17.
sex cells (egg, sperm, pollen)
a)
games
b)
gamete
c)
somatic 
d)
neurons
18.
A form of cell division that halves the number of chromosomes when forming reproductive cells
a)
sister chromatids
b)
mitosis
c)
meiosis
d)
budding
19.
the study of inheritance patterns and variation in organisms
a)
biology
b)
genetics
c)
statistics
d)
chemistry
20.
A set of alleles that an individual has for a trait or characteristic
a)
genotype
b)
phenotype
c)
karyotype
d)
gametes
21.
The physical appearance of a trait or characteristic
a)
genotype
b)
phenotype
c)
genetic code
d)
RNA
22.

Which stage of meiosis is represented in Figure 6.5?

a)

anaphase I

b)

metaphase I

c)

anaphase II

d)

metaphase II

23.

Which is the best description of the events that take place during anaphase II?

a)

the replicated chromosomes become visible

b)

homologous chromosomes line up along the equator

c)

sister chromatids are separated and pulled to opposite sides of the cell

d)

homologous pairs are separated and pulled to opposite sides of the cell

24.

What is the role of the spindle fibers?

a)

to join homologous chromosomes together

b)

to store nucleotides prior to DNA synthesis

c)

to initiate the formation of the nuclear membrane

d)

to move chromosomes in the cell

25.

The typical human body cell contains 46 chromosomes. How many chromosomes are found in a typical human sperm?

a)

23

b)

45

c)

46

d)

92

26.

During which phase of meiosis do homologous pairs of chromosomes line up next to one another along the equator?

a)

anaphase I

b)

metaphase I

c)

prophase II

d)

metaphase II

27.

A true-breeding tall pea plant is crossed with a true-breeding short pea plant, and all the offspring are tall. What is the most likely genotype of the offspring assuming a single-gene trait?

a)

tt

b)

Tt

c)

TT

d)

TT or tt

28.

If two heterozygous individuals are crossed, what percent of their offspring are also expected to be heterozygous?

a)

0

b)

50

c)

75

d)

100

29.

The fusion of haploid gametes is called

a)

gametogenesis

b)

meiosis

c)

reassortment

d)

fertilization

30.

In a genotype for plant height, such as Tt, what does each letter represent?

a)

one genome

b)

one gene

c)

one allele

d)

one gamete

31.

Crossing over is an important factor in increasing the

a)

likelihood of gene linkage on homologous chromosomes

b)

frequency with which a recessive allele is masked

c)

genetic diversity by making new allele combinations

d)

frequency with which a dominant allele is expressed

32.
Which of the following statements correctly describes meiosis?
a)
Meiosis does not occur in reproductive cells.
b)
The cells produced at the end are identical 
c)
the cells produced at the end contain half the # of chromosomes
d)
cells divide only once during meiosis
33.
If an intestinal cell in a butterfly contains 24 chromosomes, a butterfly egg cell would contain___________.
a)
12 chromosomes
b)
6 chromosomes
c)
3 chromosomes
d)
24 chromosomes
34.
A cell that contains 2n chromosomes. It contains two copies of each chromosome.
a)
diploid
b)
haploid
c)
gamete
d)
sex cell
35.
One of two paired chromosomes, one from each parent. Each chromosome has the same length, centromere positiion, and contains the same type of inherited genes.
a)
homologous chromosomes
b)
chromatids
c)
centromere
d)
centrosome
36.
What would the phenotype be for the offsprings?  T is dominant for tall pea plants
a)
50% tall, 50% short
b)
25% tall, 75% short
c)
100%  tall, 0% short
d)
75% tall, 25% short
37.
In this punnett square, what is the missing genotype?
a)
AA
b)
AO
c)
AB
d)
BB
38.
The mathematical chance that something will happen is known as...
a)
chance
b)
luck
c)
probability
39.
What would the ratio for genotypes be for this Punnett Square?
a)
2Bb:2bb
b)
2BB:2Bb
c)
1BB:2Bb:1bb
d)
4Bb
40.

In the pea Punnett Square, what is the dominant trait?

a)

yellow peas

b)

green peas

c)

parent 1

d)

parent 2

41.

What are the chances that two white flower (pp) pea plants could produce a purple flower pea plant?

a)

0%

b)

25%

c)

50%

d)

75%

42.
If green is dominant over purple, then what is the genotype for this individual?
a)
Purple
b)
Green
c)
GG
d)
gg
43.
What is the genotype for this organism?
(E= 3 eyes, e= 1 eye)
a)
EE
b)
Ee
c)
ee
d)
EE or Ee
44.
Mendel's law of segregation states that during meiosis, the alleles that control each trait separate, and only _________________ from each pair is/are passed to the offspring
a)
one allele
b)
the dominant trait
c)
two alleles
d)
the recessive trait
45.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
46.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
47.

Who is Gregor Mendel

a)

an Austrian Monk from the mid 1800s who contributed to the study of Genetics

b)

The scientist who discovered the structure of DNA

c)

a British scientist who discovered penicillin

d)

The scientist who used X-Ray Crystallography to shed light on the structure of DNA

48.

What did Gregor Mendel study?

a)

Mold Spores

b)

Pea Plants

c)

Sun Flowers

d)

Rats

49.
B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 
a)
0%
b)
25%
c)
50%
d)
75%
50.
What is the probability of heterozygous offspring?
a)
25%
b)
50%
c)
0%
d)
100%
51.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
52.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 
a)
50 % Brown Hair and 50% Blond Hair 
b)
25 % Brown Hair and 75% Blond Hair 
c)
75 % Brown Hair and 25% Blond Hair 
d)
0% Brown Hair and 100% Blond Hair 
53.
Unlike mitosis, meiosis in male mammals results in the formation of
a)
one haploid gamete
b)
three diploid gametes
c)
four diploid gametes
d)
four haploid gametes
54.
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
55.
What phase is  shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
56.
What phase is shown here?
a)
Prophase II
b)
Metaphase I
c)
Metaphase II
d)
Anaphase I
57.
What phase is shown here?
a)
Metaphase II
b)
Telophase I
c)
Telophase II
d)
Metaphase I
58.
What phase is shown here?
a)
Telophase II
b)
Anaphase II
c)
Metaphase I
d)
Interphase I
59.
What phase is shown here?
a)
Anaphase I
b)
Prophase I
c)
Metaphase II
d)
 Metaphase I
60.
What phases is shown here?
a)
Prophase II
b)
Prophase I
c)
Anaphase II
d)
Interphase I