WorksheetsGenetics Review
Total questions: 70
Worksheet time: 1hrs 3mins
Name
Class
Date
1.
True or False: The centromere is where 2 chromatids connect.
a)
True
b)
False
c)
Neither
d)
Both
2.
The resting form of DNA is called..
Hint: aka the spaghetti form
Hint: aka the spaghetti form
a)
chromatin
b)
chromosomes
c)
sister chromatids
d)
DNA noodles
3.
Before a cell divides, it must ____ its DNA.
a)
split
b)
destroy
c)
copy
d)
read
4.
The two resulting new cells (after a cell divides) are called:
a)
mother cells
b)
daughter cells
c)
brother cells
d)
father cells
5.
How many cells are made in the process of MITOSIS?
a)
one
b)
two
c)
four
d)
eight
6.
How many cells are made in the process of MEIOSIS?
a)
one
b)
two
c)
four
d)
eight
7.
What kind of cells are made in MITOSIS?
a)
Somatic Cells
b)
Sex Cells
c)
Gametes
d)
Sperm
8.
If the Diploid number of Carrots is 18, the haploid number is
a)
18
b)
9
c)
27
d)
36
9.
If the Haploid number in hamsters is 31, then the diploid number is...
a)
15.5
b)
62
c)
93
d)
10
10.
what is an allele?
a)
same variations of a gene that come from the mother and father
b)
different variations of a gene that comes just from the father
c)
different variations of a gene that comes just from the mother
d)
different variations of a gene that comes from the mother and the father
11.
What does a homozygous allele look like?
a)
YY and Yy
b)
yy and Yy
c)
Just Yy
d)
YY and yy
12.
What does a heterozygous allele look liked?
a)
YY
b)
yy
c)
Yy
d)
YY and yy
13.
what are allele combinations called?
a)
genotype
b)
phenotype
14.
when allele combinations are expressed and you can see the trait they are called...
a)
genotype
b)
phenotype
15.
All of the children came out yellow even though their dad is green. What must the genotype of the KIDS be?
a)
Yy
b)
yy
c)
YY
d)
YYyy
16.
Knowing that the kids are both yellow and green what must be the genotype of the PARENTS?
a)
YY x yy
b)
Yy x Yy
c)
yy x yy
d)
YY x YY
17.
Which of the following is not a part of interphase?
a)
G2
b)
M
c)
G1
d)
S
18.
The cell carries out normal functions during..
a)
interphase
b)
cytokinesis
c)
mitosis
19.
During mitosis,
a)
the cell divides
b)
the nucleus divides
c)
the cytoplasm divides
20.
Cells spend the majority of their lifes in
a)
interphase
b)
M
c)
S
d)
G2
21.
During _____ the cell creates organelles and begins metabolism
a)
G1
b)
S
c)
G2
d)
M
22.
the uncontrolled division of cells that results in malignant growth
a)
tissues
b)
cancer
c)
mitosis
d)
anaphase
23.
During interphase, a cell grows, dublicates organelles, and...
a)
copies DNA
b)
divides the nucleus
c)
divides the cytoplasm
d)
produces a new cell
24.
The part of the cell cycle that divides the cytoplasm of the cell
a)
Synthesis Phase
b)
G1 Phase
c)
G2 Phase
d)
Cytokinesis
25.
Which of the following is NOT a reason we need mitosis.
a)
Growth
b)
Recovering from injuries
c)
Replacement of dead cells
d)
Reproducing
26.
DNA is replicated during ______ of the cell cycle.
a)
G1
b)
S
c)
G2
d)
G0
27.
In which stage of the cell cycle is the cell preparing for division?
a)
G1
b)
S
c)
G2
d)
M
28.
Which of the following make up the M stage?
a)
fermentation, mitosis
b)
mitosis, cytokinesis
c)
glycolysis, mitosis
d)
glycolysis, cytokinesis
29.
Which of the following shows the correct sequence of the cell cycle?
a)
Mitosis-> G1->S->G2->cytokinesis
b)
S->G1-> G2-> mitosis-> cytokinesis
c)
cytokinesis->mitosis->G1->S->G2
d)
G1->S->G2->mitosis->cytokinesis
30.
Why are cancer cells not identified by white blood cells?
a)
Because they hide
b)
Because they grow too quickly
c)
Because they look like our own cells
d)
Because they fly by too quickly
31.
The causes of cancer may include which of the following?
a)
poor diet & activity levels
b)
UV radiation
c)
inheritance
d)
all of these
32.
Which type(s) of cells replicate frequently?
a)
liver
b)
skin
c)
blood
d)
bone
33.
Meiosis occurs in _____ cells.
a)
somatic
b)
sex
c)
body
34.
Mitosis creates _____ daughter cells that are identical to the parent cell.
a)
4 haploid
b)
2 haploid
c)
4 diploid
d)
2 diploid
35.
Meiosis creates ____ daughter cells that are unique from the parent cell.
a)
4 haploid
b)
2 diploid
c)
4 diploid
d)
2 haploid
36.
Structure A refers to the _____.
a)
chromatid
b)
chromosome
c)
centromere
37.
Structure B is pointing to the _____.
a)
chromosome
b)
centromere
c)
DNA
d)
chromatid
38.
Structure C is pointing to one ____.
a)
chromatid
b)
chromosome
c)
centromere
d)
DNA
39.
Which term refers to a picture of an individual’s chromosomes, used to detect genetic conditions?
a)
synapsis
b)
tetrad
c)
centriole
d)
karyotype
40.
In what stage do chromosomes align in the center of the cell?
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
41.
In what stage are chromosomes separated and moved to opposite poles?
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
42.
This picture shows...
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
43.
This picture shows...
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
44.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
45.
Who is the father of genetics?
a)
Mr. Dogg
b)
Mendel
46.
What are 4 components of gel electrophoresis?
a)
Scissors, Electricity, a Buffer and a Microwave
b)
Gel, Electricity, Meiosis and a Buffer
c)
Scissors, Meiosis, a Microwave and Agarose
d)
Gel, Electricity, a Buffer and DNA
47.
How does DNA move through a gel during electrophoresis?
a)
electrical currents
b)
pores in gel
c)
buffer solution
d)
all of the above
48.
Based on these results whose blood was found in the blood stain at the crime scene?
a)
Bob
b)
Sue
c)
John
d)
Lisa
49.
Which two bear species are most closely related?
a)
Bear 1 and Bear 2
b)
Bear 1 and Bear 3
c)
Bear 2 and Bear 3
d)
There’s no way to tell
50.
The genotypic percentage resulting from this this cross would be _____________________.
a)
25% blue eye 75 % brown eye
b)
BB = 25% Bb = 50% bb = 25%
c)
BB= 50 % bb = 50%
d)
All brown eye
51.
Red/green color blindness is a recessive sex-linked trait. A woman who is a carrier (XRXr) for this allele marries a normal-vision male (XRY). What is the probability that they will have a child who is color blind?
a)
25%
b)
50%
c)
75%
d)
100%
52.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both
53.
B=brown eyes
b= blue eyes
What is true about these two brothers that have brown eyes:
One has genotype BB the other Bb.
b= blue eyes
What is true about these two brothers that have brown eyes:
One has genotype BB the other Bb.
a)
they have same phenotype and genotype
b)
they have different genotypes and phenotypes
c)
they have same phenotype but different genotypes
d)
they have same genotype but different phenotypes
54.
Which best describes the process shown?
a)
mutation in which the DNA content of the gene is ltered
b)
segregation of sister chromatids
c)
condensation and segregation of the alleles
d)
crossing-over which alleles are exchanged
55.
A person heterozygous for wet earwax (Ww) mates with a person homozygous recessive for dry earwax. What is the chance their baby is heterozygous?
a)
0%
b)
25%
c)
50%
d)
100%
56.
A corn plant heterozygous for tall sprouts mates with a corn plant with short sprouts. If tall sprouts are dominant, how many different phenotypes are possible in the offspring?
a)
1
b)
2
c)
3
d)
4
57.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
58.
Which individual in the first generation is a carrier?
a)
The male
b)
The female
c)
individual 1
d)
None of the above
59.
In the second generation-how many people have the disease or display the physical trait?
a)
2
b)
4
c)
5
d)
6
60.
What type of heredity is shown in the pedigree?
a)
Sex-Linked Dominant
b)
Sex-Linked Recessive
c)
Autosomal Dominant
d)
Autosomal Recessive
61.
Which of the following combinations of sex chromosomes represents a male?
a)
XY
b)
XYY
c)
XX
62.
Sex linked traits are:
a)
Only found in females
b)
Traits controlled by genes found on the autosomes
c)
Traits that are controlled by genes found on the sex chromosomes
63.
Colorblindness is more common in males than in females because
a)
Fathers pass the allele for colorblindness to their sons only
b)
The allele for colorblindness is located on the Y chromosome.
c)
The allele for colorblindness is recessive and located on the X chromosome.
d)
Males who are colorblind have two copies of the allele for colorblindness.
64.
If a trait is X-linked, males pass the X-linked allele to ________ of their daughters.
a)
None
b)
1/4
c)
1/2
d)
All
65.
This pedigree shows individuals with cystic fibrosis. What is the genotype of person 1?
a)
NN
b)
Nn
c)
N?
d)
nn
66.
This pedigree shows cystic fibrosis. What is the genotype of person #5?
a)
NN
b)
Nn
c)
N?
d)
nn
67.
The pedigree shows colorblindness in a family. What is the genotype of person #4?
a)
XNY
b)
XnY
c)
XNXn
d)
XnXn
68.
The pedigree shows colorblindness in a family. What is the genotype of person #1?
a)
XNY
b)
XnY
c)
XNYn
d)
XNXn
69.
The pedigree shows colorblindness in a family. What is the genotype of person #2?
a)
XNY
b)
XNX?
c)
XNXn
d)
XnXn
70.
The pedigree shows colorblindness in a family. What is the genotype of person #5?
a)
XNY
b)
XNXn
c)
XNX?
d)
XnXn
100 %
