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Biology Q2 Review 2018

Total questions: 51

Worksheet time: 47mins

Name
Class
Date
1.
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
2.
Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?
a)
Purebred
b)
Hybrid
3.

Magda is a tall, 11 year old drummer. She has a scar on her right cheek. She is good at swimming. Which of her traits did Magda most likely inherit?

a)

height

b)

the scar

c)

ability to swim

d)

ability to play drums

4.

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

5.

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

a)

100% BB

b)

75% BB and 25%Bb

c)

50 % BB and 50% Bb

d)

50% Bb and 50% bb

6.

The likelihood that a particular event will occur is known as its ________________?

a)

responsibility

b)

probability

c)

sustainability

d)

liability

7.

Green (G) is the dominant color for pea pods. Yellow (g) is recessive. what is the phenotype for the genotype (gg)?

a)

yellow

b)

green

c)

green and yellow

8.

Dory is heterozygous for her blue (B) color. What is her genotype?

a)

BB

b)

Bb

c)

bb

d)

blue

9.

If roses can either be red (R) or white (r), what color is a heterozygous rose?

a)

Red

b)

White

10.
Why was yellow considered “dominant”?
a)
because yellow was the only color expressed in all the new seeds even though the "father" was green
b)
because yellow is a prettier color than green
c)
because yellow seed color was not passed on to any of the children
d)
because green was the only color expressed in all the new seeds even though the "father" was green
11.
Traits that are not expressed are called
a)
dominant
b)
recessive
c)
heterozygous
d)
recombinant
12.

Variations of a trait are __________________.

a)

genes

b)

chromosomes

c)

hybrids

d)

alleles

13.

Which sequence of DNA bases would pair with this partial strand?

ATG TGA CAG

a)

ATG TGA CAG

b)

TAC ACT GTC

c)

GTA AGT GAC

d)

CAT TCA CTG

14.

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of ________.

a)

cytosine

b)

guanine

c)

thymine

d)

uracil

15.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for making proteins
d)
because we eat it every day for energy
16.
Name this structure
a)
double helix
b)
nucelotide
c)
twisted ladder
d)
hydrogen bond
17.
After analyzing a sample of DNA, a scientist recorded the data shown in the table. What percentage of the DNA sample is cytosine?
a)
22%
b)
25%
c)
28%
d)
56%
18.
What will be the resulting mRNA from this DNA sequence:
GAT-TAC-AGA-TTA-CAT?
a)
CTA-ATG-TCT-AAT-GTA
b)
GAU-UAG-UGA-UUA-GUT
c)
CUA-AUG-UCU-AAU-GUA
d)
CAT-ACA-TAC-ATA-TAG
19.
How many amino acids can be represented by a single 3-base DNA sequence?
a)
1
b)
3
c)
6
d)
8
20.
A segment of an mRNA from a chimpanzee has the sequence:          AUG CUU CGU.         Which DNA segment would have been the template for this segment of RNA?
a)
GCA TCC TAC
b)
TAC GAA GCA
c)
ATG CTT CGT
d)
GCA UCC UAC
21.

Which most directly affects the sequence of amino acids in a protein?

a)

the DNA in the nucleus of the cell

b)

the amino acids found in the cytoplasm

c)

the type of cell in which the protein is made

d)

the region of the cell in which the protein is made

22.
Choose the correct sequence of terms to fill in this sentence correctly:
_______ are subunits of _______, which code for the next _______ in a sequence that makes up _______.
a)
Amino acids, proteins, nucleotide, a DNA molecule
b)
DNA molecules, nucleotides, protein, an amino acid
c)
Nucleotides, DNA molecules, amino acid, a protein
d)
Proteins, amino acids, DNA molecule, a nucleotide
23.
Find the amino acid for CCU
a)
Proline
b)
Valine
c)
Glutamine
d)
STOP
24.
The division of the nucleus is known as:
a)
Synthesis
b)
Mitosis
c)
G1
d)
G2
25.

For what reason do cells of organisms replicate?

a)

growth

b)

repair of damaged cells

c)

replacement of dying cells.

d)

All of the above

26.
Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?
a)
In order for genetic information to be transferred into daughter cells.
b)
In order for the cell to be able to increase in size.
c)
In order for the DNA to be contained in the nucleus.
d)
In order for the cell to re-order the DNA sequencing in the new cells.
27.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
28.
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have -
a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
29.
sequence
a)
C,D, B, A, F, E
b)
D,A,F,C,E,B
c)
B,E,C,F,A,D
d)
C,B,D,A E,F
30.
Gene: ABCDEF
Mutation: ACEFCD
What mutation occurred?
a)
deletion
b)
substitution
c)
inversion
d)
insertion
31.
DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTACGCAAC. This is an example of ___ mutation.
a)
Substitution
b)
Insertion
c)
Inversion
d)
Translocation
32.
Which change below would result in a different Amino Acid? 
3'-GCT-5'
a)
GTT
b)
TCT
c)
TCC
d)
GCA
33.
Identify the mutation in the picture.
a)
Inversion
b)
Deletion
c)
Duplication
d)
Translocation
34.
When can a mutation be passed on to offspring?
a)
only when the mutation is present during or occurs during mitosis
b)
only when the mutation is present during or occurs during meiosis
c)
when the mutation occurs during mitosis or meiosis
d)
when the mutation occurs in somatic cells
35.
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
36.

Translocation

a)

A

b)

B

c)

C

d)

D

37.

Duplication

a)

A

b)

B

c)

C

d)

D

38.

Inversion

a)

A

b)

B

c)

C

d)

D

39.
A linear code of three sequential bases on one side of a DNA molecule is a --
a)
codon
b)
gene
c)
amino acid
d)
base pair
40.
Why can genes from one organism like a bacteria be inserted into a human genome?
a)
both organisms are classifies in the same kingdom
b)
the genome of both organisms is identical
c)
the genetic code is universal to all living things
d)
microorganisms are typically lower level prokaryotes while humans are higher level eukaryotes
41.
Any change in the sequence of DNA nucleotides or chromosomes is called a 
a)
mutation
b)
single genotype
c)
monohybrid trait
d)
transgenic shift
42.
What is the main purpose of the sequences of nitrogen bases?
a)
gives DNA the shape needed for translation
b)
prevents mutations when coding for amino acids
c)
forming the hydrogen bonds between the bases
d)
carries instructions for the traits of an orgainsm
43.
In eukaryotes, DNA never leaves the nucleus of the cell. Therefore, the genetic information is carried from the nucleus to the protein producing mechanisms by --
a)
amino acids
b)
RNA
c)
glucose
d)
phospahtes
44.
The DNA triplets that code for amino acids are common to --
a)
humans only
b)
plants and animals
c)
prokaryotes
d)
all living things
45.
The stages of mitosis in order
a)
Metaphase, Anaphase, Prophase, Telophase
b)
Prophase, Anaphase, Metaphase, Telophase
c)
Prophase, Metaphase, Anaphase, Telophase
d)
Anaphase, Prophase, Telophase, Metaphase
46.
During which phase of the cell cycle does the cell spend the most time?
a)
Mitosis
b)
Cytokinesis
c)
Interphase
47.
During which part of the cell cycle does the cell divide?
a)
Interphase
b)
Mitosis
c)
S phase
48.
During which part of the cell cycle is DNA copied?
a)
Mitosis
b)
Cytokinesis
c)
S phase
49.

During which phase of mitosis do all the chromosomes line up on the equator of the cell?

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

50.

The model represents the change in the DNA content of a cell during the cell cycle. Which part of the model represents the S phase?

a)

I

b)

II

c)

III

d)

IV

51.

Telophase is a stage of a cellular process that begins after the chromosomes have moved to opposite poles of the cell. During which cellular process does telophase occur?

a)

translation

b)

interphase

c)

transcription

d)

mitosis

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