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Revision (Chapter 11 - 17)

Total questions: 40

Worksheet time: 30mins

Name
Class
Date
1.

Chromosomes are duplicated during what stage of the cell cycle?

a)

G1 Phase

b)

S Phase

c)

Prophase

d)

Prometaphase

2.

Which of the following events does not occur during some stages of interphase?

a)

DNA duplication

b)

organelle duplication

c)

increase in cell size

d)

separation of sister chromatids

3.
In humans, mitosis is used for which of the following:
a)
Growth
b)
Repair
c)
Renewal
d)
All of the above
4.
Homologous chromosome pairs (tetrads) exist during which phase?
a)
Prophase 1 of meiosis
b)
Prophase 2 of meiosis
c)
Prophase of mitosis
d)
Every iteration of prophase
5.
Structure B is pointing to the _____. 
a)
chromosome
b)
centromere
c)
DNA
d)
chromatid
6.
What phase is shown here?
a)
Prophase II
b)
Metaphase I
c)
Metaphase II
d)
Anaphase I
7.
What phase is shown here?
a)
Telophase II
b)
Anaphase II
c)
Metaphase I
d)
Interphase I
8.

Which of the following is NOT a requirement for maintaining the Hardy-Weinberg equilibrium?

a)

An increasing mutation rate

b)

Random mating

c)

Large population size

d)

No migration

9.

In human ABO blood type, allele A and allele B are

a)

co-dominant

b)

recessive

c)

dominant

d)

co-recessive

10.

An allele is

a)

another word for a gene

b)

a homozygous genotype

c)

a heterozygous genotype

d)

one of several possible forms of a gene

11.
Genotype refers to the ...
a)
physical expression of the genes
b)
the possible combination of alleles in a gene
c)
whether an allele is dominant or recessive
d)
how an organism will appear
12.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
13.

Mendel's principle of segregation states that:

a)

alleles from one parent mask the expression of alleles from the other parent

b)

alleles separate from each other before forming gametes

c)

true-breeding parents produce offspring of the same phenotype

d)

different loci separate from each other.

14.

The Law of Independent Assortment is not applicable for

a)

dihybrid inheritance

b)

heterozygous genotype

c)

true breed individuals

d)

linked genes

15.

For autosomal recessive mode of inheritance, the affected person will have the genotype

a)

rr

b)

RR

c)

Rr

16.

A man who carries an X-linked allele will pass it on to

a)

all of his sons

b)

all of his daughters

c)

all of his children

d)

half of his son

17.
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
18.
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
19.

What process occurs during meiosis that can result in abnormal number of chromosomes?

a)
crossing over
b)
non-disjunction
c)

synapsis (pairing up)

d)

chromosomes condense

20.

What is the purpose of gel electrophoresis in molecular biology?

a)

To amplify DNA sequences

b)

To determine the sequence of DNA

c)

To visualize DNA under a microscope

d)

To separate and analyze DNA, RNA, or proteins based on their size and charge.

21.

Which enzyme is commonly used in PCR to amplify DNA?

a)

RNA polymerase

b)

Taq DNA polymerase

c)

Retriction Enzymes

d)

Ligase

22.

What is the function of restriction enzymes in molecular biology?

a)

join DNA at specific recognition sites.

b)

repair DNA at specific recognition sites.

c)

cut DNA at specific recognition sites.

d)

amplify DNA at specific recognition sites.

23.
What is the function of a primer?
a)
To identify the particular region of DNA to be copied by PCR.
b)

To unwind DNA.

c)
To create DNA nucleotides.
d)
To maintain the temperature of the PCR reaction.
24.
Based on these results whose blood was found in the blood stain at the crime scene?
a)
Bob
b)
Sue
c)
John
d)
Lisa
25.

The transfer of alleles from one population to another.

a)

natural selection

b)

genetic drift

c)

gene flow

d)

mutations

26.

Similar structures evolved from a common ancestor

a)

fossil

b)

homologous

c)

analogous

d)

vestigial

27.

Which organisms are most likely to survive?

a)

the best adapted

b)

the fastest

c)

the strongest

d)

the most domesticated (tamed)

28.

.

Two species of frog live in the same lake, but prefer different places to live

a)

Temporal isolation

b)

Behavioral isolation

c)

Habitat isolation

d)

Geographic isolation

29.

One species of cicada only reproduces every 4 years

a)

Behavioral isolation

b)

Temporal isolation

c)

Ecological isolation

d)

Geographical isolation

30.

A new river forms and splits two populations, causing ______________ speciation

a)

Sympatric

b)

Allopatric

c)

Extreme

d)

Convergent

31.

Below are the % similarities of DNA between whales and other species. Based on this, which are whales most closely related to?

a)

Pig, 68.4%

b)

Hippo, 83.4%

c)

Mouse, 38.4%

32.

Which best describes the phrase survival of the fittest?

a)

strongest in a population are most successful

b)

those that can survive and reproduce are most successful

c)

fastest in a population are most successful

d)

those that can live the longest are most successful

33.

A population of rabbits has three fur colors: white, gray, and black. After volcanic activity, the terrain changed and now the rabbits now live on white rocks and black rocks. What type of selection is likely to occur?

a)

Directional selection

b)

Stabilizing selection

c)

Disruptive selection

34.
How does embryology support the Theory of Evolution?
a)

It shows that they have a common ancestor because of their early development similarities.

b)

Animals change over time. 

c)

Embryo does not change

d)

They can be shown to adapt to their environment.

35.

A category of structures that have a similar function, but are not evolved from common ancestry

a)

Homologous structures

b)

Analogous structures

c)

Vestigial structures

d)

Common core structures

36.

Whales, sharks, and penguins all have streamlined bodies and fins/flippers for moving in water even though they belong in different classes of animals. This is _______.

a)

Convergent evolution

b)

Divergent evolution

c)

Coevolution

d)

Competition

37.

In order to insert a human gene into plasmid, both must

a)

code for the same gene product.

b)

be cut by the same restriction enzyme.

c)

originate from the same type of cell.

d)

have identical sequences.

38.
In which step would the enzyme ligase be used?
a)
A
b)
B
c)
C
d)
D
39.

At what temperature does the denaturation step of PCR occur?

a)

95° C

b)

50° C

c)

72° C

40.
mRNA is converted to cDNA by ………………
a)
Ligase enzyme
b)
Reverse Transcriptase enzyme
c)
Restriction Endonuclease enzyme
d)
RNA polymerase enzyme

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