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U3M2L1 Traits

Total questions: 40

Worksheet time: 54mins

Name
Class
Date
1.

Characteristics that are passed from parents to their offspring are called

a)

behaviors

b)

learned traits

c)

inherited traits

d)

functions

2.

Homozygous is when...

a)

the alleles are the same (example HH or hh)

b)

the alleles are different (example Hh)

c)

the alleles are absent

d)

the alleles are present

3.

Heterozygous is when...

a)

the alleles are the same (example HH or hh)

b)

the alleles are different (example Hh)

c)

the alleles are absent

d)

the alleles are present

4.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both 
5.

T - tall and t = short

In the punnett square pictured, what belongs in the missing square

a)

tt

b)

Tt

c)

Bb

d)

TT

6.
In the punnett square shown, what must the genotype of the missing parent be?
a)
BB
b)
Bb
c)
bb
d)
Tt
7.
Which of the following is a phenotype?
a)
Aa
b)
black hair
c)
heterozygous genes
d)
mutated DNA
8.
Dominant or recessive?
tt
a)
Dominant 
b)
Recessive
9.
What is a dominant allele?
a)
A trait that is always shown (capital letter)
b)
A trait that can be hidden (lower case letter)
c)
Alleles that are the same
d)
Alleles that are different
10.
This image shows a...
a)
Punnett Square
b)
Phenotype
c)
Genotype
d)
Dominant allele
11.
What does heterozygous mean?
a)
An organism that has the same genes for a trait (TT or tt)
b)
An organism that has different genes for a trait (Tt)
c)
When neither gene is fully dominant; offspring is a mixture of both
d)
the different forms of a trait (hair color--> brown, blonde, red
12.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
13.
Homozygous or heterozygous?
BB
a)
Homozygous
b)
Heterozygous
14.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
15.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
16.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
17.

On a punnet square, where are the parent alleles written?

a)

Top and inside the boxes

b)

Only on the left and right side of the boxes.

c)

outside of the boxes (top and left side)

d)

All on the top side of the boxes

18.

DNA stands for

a)

Deoxyriboplasmic acid

b)

Deoxynutrient amino

c)

Deoxyribonucleic acid

d)

Deoxyneutron amino

19.

What are the four nitrogen bases present in DNA?

a)

adenine, lysine, guanine, cytosine

b)

adenine, uracil, guanine, cytosine

c)

cytosine, thymine, lysine, adenine

d)

cytosine, guanine, thymine, adenine

20.

Which of the following is a base pair?

a)

Adenine - Cytosine

b)

Cytosine - Thymine

c)

Deoxyribose - Cytosine

d)

Cytosine - Guanine

21.

Adenine bonds with ______________.

a)

Guanine

b)

Thymine

c)

Cytosine

d)

Adenine

22.

Guanine bonds with ______________.

a)

Adenine

b)

Guanine

c)

Cytosine

d)

Thymine

23.

The structure of DNA can best be described as a

a)

single strand

b)

triple chain

c)

double helix

d)

short line

24.

Where in the cell is most of the DNA stored?

a)

cytoplasm

b)

nucleus

c)

cell membrane

d)

ribosomes

25.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
26.

Every time a cell divides, it must copy the DNA. This process is called __________.

a)

transcription

b)

translation

c)

replication

d)

californication

27.

DNA is transcribed into RNA. RNA is translated into _______.

a)

protein

b)

chromosomes

c)

carbohydrates

d)

lipids

28.
Any change in the sequence of DNA is...
a)
transgenic shift
b)
Single Genotype
c)
Monohybrid Trait
d)
Mutation
29.
Where do mutations occur?
a)
DNA and RNA
b)
DNA 
c)
RNA
d)
mRNA and tRNA
30.

Diseases caused by mutations that occur in genes are called what?

a)

Cancers

b)

Genetic Disorders

c)

Mutagens

d)

Insertions

31.
What is a Gene?
a)
A segment of RNA that encodes for a protein
b)
A chromosome
c)
A segment of DNA that encodes for a protein
d)
Your genome
32.
If you are a boy, what percent of your genes did you get from your dad?
a)
25%
b)
50%
c)
75%
d)
100%
33.
The twisted ladder shape of DNA is referred to as a ....
a)
Twizzler candy
b)
twisted ladder
c)
double helix
d)
yo mama
34.
DNA is inside your cells. What part of the cell is the DNA inside of?
a)
cell membrane
b)
cytoplasm
c)
nucleus
35.

From smallest to largest how would genetic information be organized?

a)

genes, cell, nucleus, chromosome, DNA

b)

chromosome, cell, gene, DNA, nucleus

c)

DNA, gene, chromosome, nucleus, cell

d)

nucleus, cell, gene, DNA, chromosome

36.
HOMOZYGOUS
a)
same
b)
different
37.
HETEROZYGOUS
a)
same
b)
different
38.
An organism's physical appearance or visible traits...
a)
genotype
b)
inherit
c)
gene
d)
phenotype
39.

Mutations can be ...

a)

harmful

b)

beneficial

c)

neutral

d)

all of these are correct!

40.

Mutations passed on over generations cause species to _____.

a)

go extinct

b)

eat eachother

c)

disappear

d)

evolve

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