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Bio S2 Review

Total questions: 31

Worksheet time: 35mins

Name
Class
Date
1.
Before the cell divides, what process needs to happen?
a)
Transcription
b)
Translation
c)
Replication
d)
Protein synthesis
2.
Transcribe the sequence of DNA
ATTCAGAGG
a)
ATTCAGAGG
b)
TAAGACTCC
c)
UAAGUCUCC
d)
UACGAUCGG
3.

What is the scientific name for the shape of a DNA molecule?

a)

Double spiral

b)

Fusilli

c)

Twisted ladder

d)

Double helix

4.
Translate this mRNA codon: AUU
a)
Ile
b)
Met
c)
Asn
d)
Phe
5.

If DNA is NOT replicated or transcribed correctly, what happens?

a)

Protein folds and functions correctly

b)

All amino acids are placed correctly

c)

Never has any effect

d)

A mutation

6.

What is the final result of meiosis?

a)

4 daughter cells with variation

b)

4 identical daughter cells

c)

2 identical daughter cells

d)

2 daughter cells with variation

7.
The cells produced via meiosis are called:
a)
gametes
b)
somatic cells
c)
body cells
d)
skin cells
8.
What phase of meiosis?
a)
Metaphase 2
b)
Metaphase 1
c)
Anaphase 2
d)
Anaphase 1
9.
Put these stages of mitosis in the correct 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
10.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
11.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
12.
In Mendelian genetics, in a heterozygous genotype, the ___________ allele completely takes over in the phenotype. (= complete dominance)
a)
recessive
b)
dominant
c)
lower case letter
d)
both 
13.
What usually explains traits that "skip" a generation?
a)
dominant traits
b)
recessive traits
c)
mutations
d)
natural selection
14.
In the punnett square shown, what must the genotype of the missing parent be?
a)
BB
b)
Bb
c)
bb
d)
Tt
15.
This type of inheritance pattern shows BOTH traits in heterozygous offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
sex-linked
16.
This type of inheritance pattern is an even BLEND of both traits if heterozygous.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
17.

This karyotype could belong to someone with...?

a)

male gender

b)

Down syndrome

c)

Monosomy 18

d)

Trisomy 23

18.
How should you write the genotype of a carrier for a sex-linked trait? 
a)
XAXA
b)
XAXa
c)
XaXa
d)
XAYa
19.
The entire collection of genes within human cells is referred to as the ______.
a)
human genome
b)
karyotype
c)
pedigree
d)
gene map
20.
Which of the following explains how natural selection causes a trait to become predominant in a population?
a)
Individuals with traits that are favorable to the environment reproduce more.
b)
Traits of an individual change in order to adapt to changes in enviornment.
c)
organisms select which traits they wish to inherit
d)
all of these answers
21.
Structures with the same parts have different functions; suggests that organisms share a common ancestry
a)
vestigial structures
b)
homologous structures
c)
adaptive radiation
d)
fossil
22.
The difference in the physical traits of an individual from those of other individuals in a group is called a(n)
a)
change
b)
adaption
c)
species
d)
variation
23.

An inherited characteristic that increases an organism's ability to survive and reproduce in its specific environment is called a(n)

a)

vestigial structure

b)

adaptation

c)

speciation

d)

analagous structure

24.
Adapting to similar environments or situations results in physical similarities
among species which are NOT closely related during...
a)
homologous structuring
b)
artificial selection
c)
speciation
d)
convergent evolution
25.
Natural selection over generations causes
a)
Continental drift and geographic isolation.
b)
Genetic variation within a species.
c)
The frequency of alleles for helpful  adaptations to increase.
d)
All of these
26.
An organism made up of more than one cell would be called:
a)
multicellular
b)
unicellular
c)
heterotroph
d)
autotroph
27.

Which 2 organisms would be able to reproduce and produce fertile offspring?

a)

2 organisms in the same class

b)

2 organisms in the same family

c)

2 organisms in the same genus

d)

2 organisms in the same species

28.
Where does most of the energy in an ecosystem originate?
a)
The Sun
b)
The moon
c)
Earth's core
d)
Plants
29.
Which of these is a "producer"?
a)
An oak tree
b)
A wolf
c)
A squirrel
d)
A mushroom
30.
As shown in this foodweb, which of these is NOT an omnivore?
a)
The grouse
b)
The grizzly bear
c)
They are all omnivores
d)
The marmot
31.
In this foodweb, what niche does the butterfly fill?
a)
Primary consumer
b)
Omnivore
c)
Secondary consumer
d)
Producer

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