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Genetics and Meiosis Review 22-23

Total questions: 100

Worksheet time: 1hrs 29mins

Name
Class
Date
1.

Which of the following allele pairs is homozygous?

a)

Ee

b)

BB

c)

Tt

2.

Which of the following allele pairs is homozygous recessive?

a)

RR

b)

Rr

c)

rr

3.

Which of the following allele pairs is heterozygous dominant?

a)

Ff

b)

ff

c)

FF

4.

If the dominant trait is having freckles (F) and the recessive trait is no freckles (f), which allele combination(s) below would represent a person who has freckles? (select all that apply)

a)

FF

b)

Ff

c)

ff

5.

Look at the punnett square shown. What is the probability that the offspring will show the dominant trait?

a)

100%

b)

75%

c)

50%

d)

25%

e)

0%

6.

Look at the punnett square. What is the probability that the offspring's alleles will be homozygous dominant?

a)

100%

b)

75%

c)

50%

d)

25%

e)

0%

7.

Look at the punnett square. What is the probability that the offspring would have homozygous alleles for the trait?

a)

100%

b)

75%

c)

50%

d)

25%

e)

0%

8.

Alleles for the same gene separate in

a)

Anaphase 1

b)

Metaphase 1

c)

Anaphase 2

d)

Metaphase 2

9.

Independent assortment occurs in

a)

Metaphase 1

b)

Metaphase 2

c)

Anaphase 1

d)

Anaphase 2

10.

Is this person a male or female?

a)

Male

b)

Female

11.

Pick the best description.

a)

Normal

b)

Monosomy

c)

Trisomy

d)

Deletion

12.

Karyotypes are pictures of

a)

Cells

b)

Specific genes

c)

Chromosomes

d)

Proteins

13.

If a person is a carrier of a genetic disorder, they:

a)

don't have the disorder and cannot pass it on to their offspring.

b)

have the disorder, but can't pass it on to their offspring.

c)

don't have the disorder, but can pass it to offspring through a recessive trait.

d)

have the disorder and will pass it on to offspring through a dominant trait.

14.

What’s another name for trisomy 21?

a)

Down syndrome

b)

ADHD

c)

T2

d)

sickle cell

15.

This genetic disease has the karyotype notation of 45 XO because of the missing X chromosome

a)

Klinefelters syndrome

b)

XYY syndrome

c)

Turner's syndrome

d)

Kawasaki's disease

16.
If results of recombination do NOT follow Mendel's Law of Independent Assortment, genes are likely to be - - - 
a)
shuffled during meiosis
b)
linked
c)
inherited
d)
on separate chromosomes
17.
Which genes are most likely linked?
a)
genes 1 & 2
b)
genes 2 & 3
c)
genes 3 & 4
d)
genes 1 & 4
18.

Genes that are located in the same chromosome?

a)

Chromosome Map

b)

Genetic Recombination

c)

Linked Genes

d)

Fruit Fly

19.

How many daughter cells does meiosis produce?

a)

1

b)

2

c)

3

d)

4

20.

Meiosis produces daughter cells that are genetically _________ each other.

a)

identical to

b)

different from

c)

superior to

d)

inferior to

21.

How many daughter cells does mitosis produce?

a)

1

b)

2

c)

3

d)

4

22.

What are 1/2 of duplicated chromosome, made of condensed (packaged) chromatin?

a)

chromatid

b)

chromatin

c)

chromosome

d)

dna

23.

What cell cycle process' prupose is to divide the nucleus to make 2 nuclei with identiacal DNA; split the DNA so the correct half can go in the new cell?

a)

mitosis

b)

meiosis

c)

interphase

d)

cytokinesis

24.

What is  a single, highly organized and structured piece of DNA, which contains many genes?

a)

Karyotype

b)

Allele

c)

Chromosomes

d)

Trait

25.

What are strands of hereditary material found on DNA?

a)

Chromosomes

b)

Genes

c)

Cells

d)

Nucleus

26.

How many genes does each chromosome's DNA contain?

a)

100's to 1000's

b)

23

c)

48

d)

2

27.

How many DNA molecules are found in one chromosome?

a)

1

b)

2

c)

23

d)

48

28.

Which of these is the correct order showing the largest to smallest parts of genetic material?

a)

DNA, Cell Membrane, Cell Nucleus Chromosomes, and Genes

b)

Cell Nucleus, Cell Membrane, Chromosomes, Genes, and DNA

c)

DNA, Genes, Cell Membrane, Cell Nucleus, and Chromosomes

d)

Cell Membrane, Cell Nucleus, Chromosomes, DNA, and Genes

29.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
30.

Homologous chromosomes line up at the center of the cell.

a)

Prophase I

b)

Prophase II

c)

Metaphase I

d)

Metaphase II

31.

Homologous chromosomes are pulled apart by spindle fibers

a)

Metaphase I

b)

Metaphase II

c)

Anaphase I

d)

Anaphase II

32.

Two new nuclei form in each cell. The cytoplasm splits, cells officially become haploid in this stage.

a)

Telophase I

b)

Telophase II

c)

Prophase I

d)

Prophase II

33.

Single chromosomes line up in the center of the cell.

a)

Metaphase I

b)

Metaphase II

c)

Anaphase I

d)

Anaphase II

34.

Single chromosomes are separated into sister chromatids by spindle fibers.

a)

Metaphase I

b)

Metaphase II

c)

Anaphase I

d)

Anaphase II

35.

How do homologous chromosomes differ from each other?

a)

One is longer than the other.

b)

The identity and placement (loci) of genes are different.

c)

The banding patterns as seen on a karyotype are different.

d)

The exact order of the nucleotides on each chromosome is different.

36.
An example of a mutation where a piece of chromosome breaks off and attaches to another chromosome is called ___.
a)
trisomy
b)
translocation
c)
inversion
d)
deletion
37.
Notice the abnormal 23rd chromosome.  This individual suffers from which chromosomal genetic disorder?
a)
Klienfelter's Syndrome
b)
Down Syndrome
c)
Cris-du-Chat Syndrome
d)
Andrew's Syndrome
38.
A chromosome is found to be shorter than it's homologous match.  Which type of mutation would this most likely be?
a)
insertion
b)
deletion
c)
translocation
d)
inversion
39.
What process occurs during meiosis that can result in chromosomal disorders?
a)
crossing over
b)
non-disjunction
c)
anaphase I
d)
prophase II
40.
This is an example of ___________.
a)
 Incomplete Dominance
b)
 Codominance
41.

A woman with curly hair and a man with straight hair produced a child with wavy hair:

a)

Incomplete dominance

b)

Codominance

c)

Complete dominance

42.

Which statement is true in determining the phenotype for the ABO blood system?

a)

O is dominant over A

b)

B is dominant over A

c)

O is dominant

d)

A and B is codominant

43.

What are the blood types of the possible children that a woman (type O) and man (type AB) can have?

a)

O and AB

b)

O and A

c)

O and B

d)

A and B

44.

If the offsprings have the blood groups O and A the genotype of parents would be

a)

IAIA and IAi

b)

IA i and ii

c)

IAIA and IAIA

d)

IA i and IBi

45.

If a person has type B blood, the phenotype is B. What can the genotype be?

a)

IBIB or IBi

b)

IAIA or IAi

c)

IAIB

d)

ii

46.

genes for traits located on sex chromosomes; if on the X (most likely), males only get 1 copy and females get 2

a)

Multiple Alleles

b)

Polygenic Inheritance

c)

Linked Genes

d)

Sex-Linked Traits

47.

Section of DNA that provides the instructions for making a protein

a)

Gene

b)

Alleles

c)

Homologous Chromosomes

d)

Homozygous

e)

Heterozygous

48.

Different versions of the same gene

a)

Gene

b)

Alleles

c)

Homologous Chromosomes

d)

Homozygous

e)

Heterozygous

49.

The matching chromosomes from your mom and dad

a)

Gene

b)

Alleles

c)

Homologous Chromosomes

d)

Homozygous

e)

Heterozygous

50.

The actual alleles inherited for a gene

a)

Phenotype

b)

Genotype

c)

Recessive

d)

Dominant

51.

The physical traits/characteristics seen in an organism

a)

Phenotype

b)

Genotype

c)

Recessive

d)

Dominant

52.

Someone who carries a recessive allele but doesn’t show the trait due to having a dominant allele to mask over it

a)

Chromosome Theory of Inheritance

b)

Incomplete Dominance

c)

Epistasis

d)

Codominance

e)

Carrier

53.

heterozygous genotype yields a phenotype that is a blend of the other two traits

a)

Chromosome Theory of Inheritance

b)

Incomplete Dominance

c)

Epistasis

d)

Codominance

e)

Carrier

54.

heterozygous genotype yields a phenotype that shows both of the other traits fully and separately

a)

Chromosome Theory of Inheritance

b)

Incomplete Dominance

c)

Epistasis

d)

Codominance

e)

Carrier

55.

genes for traits located on sex chromosomes; if on the X (most likely), males only get 1 copy and females get 2

a)

Multiple Alleles

b)

Polygenic Inheritance

c)

Linked Genes

d)

Sex-Linked Traits

56.

more than 1 gene determines a trait

a)

Multiple Alleles

b)

Polygenic Inheritance

c)

Linked Genes

d)

Sex-Linked Traits

57.

more than 2 versions of 1 gene

a)

Multiple Alleles

b)

Polygenic Inheritance

c)

Linked Genes

d)

Sex-Linked Traits

58.

Any change in DNA

a)

Mutation

b)

Mutagen

c)

Duplication

59.

A chromosome mutation that changes the size of chromosomes and results in multiple copies of a gene

a)

Mutation

b)

Mutagen

c)

Duplication

60.

A chromosome mutation that results when pieces of non-homologous chromosomes exchange segments during crossing over

a)

Mutation

b)

Mutagen

c)

Duplication

d)

Translocation

61.

Chart used to trace a trait/disease through a family tree

a)

Nondisjunction

b)

Pedigree

c)

Duplication

d)

Translocation

62.

An organism’s complete set of DNA; all of its genes

a)

Biotechnology

b)

Gene map

c)

Genome

d)

Genetic engineering

e)

Recombinant DNA

63.

A man with red-green color blindness (X' Y), a recessive sex-linked trait, has a child with a woman that is homozygous dominant (X X). What is the probability that a child produced from this couple will have red-green color blindness?

a)

0% for male children and 0% for female children

b)

0% for male children and 100% for female children

c)

50% for male children and 50% for female children

d)

100% for male children and 0% for female children

64.

An X-linked allele is an allele that is carried on the X-chromosome. Which statement best describes the inheritance of a recessive X-linked allele?

a)

A daughter can only inherit the allele from her mother.

b)

A daughter must inherit the allele from both parents.

c)

The father must have the allele to pass it to his son.

d)

The mother cannot pass the allele to her son.

65.

Red-green color blindness is an X-linked recessive trait in humans. A colorblind woman and a man with normal vision have a son. What is the probability that the son is color blind?

a)

100%

b)

75%

c)

50%

d)

25%

66.

Identify the phase of meiosis in the image.

a)

Prophase I

b)

Prophase II

c)

Telophase I

d)

Telophase II

67.

If an organism has 30 chromosomes in each body cell, how many will each daughter cell have after going through meiosis?

a)

10

b)

15

c)

30

d)

40

68.

Which ones are not a recessive genetic disorder? page 116

a)

Tay-sach's disease

b)

achondroplasia

c)

albinism

d)

cystic fibrossis

e)

huntington's disease

69.
Albinism is a recessive genetic disorder.  An individual who has two recessive alleles will be albino; while an individual with one dominant allele will not. What is the definition of a recessive genetic disorder? 
a)
One copy of an abnormal gene must be present for the disease or trait to develop. 
b)
 Two copies of an abnormal gene must be present in order for the disease or trait to develop?
70.
Look up the following genetic disorders and pick the disorder that is a recessive genetic disorder.
(1)Huntington's Disease
(2)Cystic Fibrosis 
(3)Achondroplasia 
a)
Huntington's Disease
b)
Cystic Fibrosis 
c)
Achondroplasia
d)
They are all recessive genetic disorders.
71.
If a recessive genetic disorder mean that you need 2 abnormal alleles to express the disorder.  What dose a dominant genetic disorder mean?
a)
An individual only needs 1 abnormal allele to express the disorder. 
b)
An individual needs 2 abnormal alleles to express the disorder. 
c)
An individual will never express the disorder.
d)
An individual needs 3 abnormal alleles to express the disorder. 
72.
Can an individual be a carrier for a dominant  genetic disorder. 
a)
Yes 
b)
No
73.

Use the figure to describe what the top horizontal

line between numbers 1 and 2 indicates

a)

A. 1 and 2 are siblings

b)

1 and 2 are parents

c)

1 and 2 are offspring

d)

1 and 2 are carriers

74.

If a genetic disorder is caused by a dominant

allele, what is the genotype of those who do

not have the disorder?

a)

heterozygous

b)

homozygous dominant

c)

homozygous recessive

75.

How many affected males and females are in this pedigree?

a)

1 male, 2 females

b)

5 males, 3 females

c)

2 males, 1 female

d)

3 males, 5 females

76.

Which of the following disorders has this genotype-phenotype pattern?

DD=death of embryo

Dd=affected

dd=normal

a)

Achondroplasia

b)

Colorblindness

c)

Huntington's Disease

d)

Trisomy 21

77.
What is the genotypic ratio here
a)

TT = 25% Tt= 50% tt=25%

b)

all tall

c)

TT= 75% tt = 25%

d)

Tt = 100%

78.
T2 - Which law states that organisms inherit 2 copies of each gene and donate one to their offspring
a)
law of independent assortment
b)
law of segregation
c)
law of genetic linkage
d)
law of inheritance
79.
T3 - Which of the following is a genotype?
a)
long hair
b)
blue eyes
c)
Gg
d)
tall
80.

Each trait is individual; gene that determines one trait does not determine the others

a)

Monohybrid

b)

Dominant

c)

Homozygous

d)

Law of Independent Assortment

81.

genes for different traits are inherited independently of each other

a)

Law of Independent Assortment

b)

Law of Segregation

c)

Law of Assortment

d)

Law of Independent Segregation

82.

How are individuals III-2 and II-4 related?

a)

Brother and sister

b)

Dad and daughter

c)

Uncle and niece

d)

Grandfather and granddaughter

83.

On this pedigree, the allele for curly hair is dominant. The couple labeled 2 both have curly hair, but have a daughter who does not have curly hair. Therefore, we can tell from the chart that for the couple labeled 2 -

a)

the male is heterozygous and the female is heterozygous.

b)

the male is homozygous recessive and the female is homozygous dominant.

84.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
85.
Is this trait (the shaded individuals) dominant or recessive?
a)
dominant
b)
recessive
86.

If this pedigree shows a recessive disorder, what MUST the genotype of individual 4 be?

a)

HH

b)

Hh

c)

hh

87.
There are no carriers for Huntington's Disease- you either have it or you don't. Is Huntington's disease caused by a dominant or recessive trait?
a)
Dominant
b)
Recessive
88.
Huntington's Disease is a dominant trait.
What is the correct genotype for individual I-2?
a)
HH
b)
Hh
c)
hh
d)
H_
89.
What is the genotype of the mother?
a)
BB
b)
bb
c)
Bb
d)
BB or Bb
90.
This trait is recessive.  What is the genotype for person II-1?
a)
GG
b)
Gg
c)
gg
d)
can't be determined
91.

Why do all the daughters in Generation II carry the colorblind gene?

a)

Because mom passed on the gene.

b)

Because dad passed on the X chromosome.

92.

Assuming a trait is AUTOSOMAL RECESSIVE, what genotypes would make a person UNAFFECTED?

a)

AA

b)

Aa

c)

aa

d)

XAY

e)

XaY

93.

Assuming a trait is AUTOSOMAL RECESSIVE, what genotype would make a person AFFECTED?

a)

AA

b)

Aa

c)

aa

d)

XAY

e)

XaY

94.

Assuming a trait is AUTOSOMAL DOMINANT, what genotype would make a person UNAFFECTED?

a)

AA

b)

Aa

c)

aa

d)

XAY

e)

XaY

95.

Assuming a trait is AUTOSOMAL DOMINANT, what genotypes could make a person AFFECTED?

a)

AA

b)

Aa

c)

aa

d)

XAY

e)

XaY

96.

Assuming a trait is X-LINKED RECESSIVE, what are the genotypes of an AFFECTED person?

a)

XAY

b)

XaY

c)

XAXA

d)

XAXa

e)

XaXa

97.

Assuming a trait is X-LINKED RECESSIVE, what are the genotypes of an UNAFFECTED person?

a)

XAY

b)

XaY

c)

XAXA

d)

XAXa

e)

XaXa

98.

The genotype XaY represents a ________

a)

dominant male

b)

recessive male

c)

dominant female

d)

recessive female

99.
How many females are in this pedigree?
a)
3
b)
4
c)
6
d)
7
100.
How many of the males in this pedigree show the trait being studied?
a)
2
b)
3
c)
4
d)
6

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