WorksheetsGenes and Other Things
Total questions: 30
Worksheet time: 23mins
Name
Class
Date
1.
The traits of an organism are passed to its offspring on small coded strands of DNA material called
a)
meiosis
b)
recessive traits
c)
genes
d)
heredity
2.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
3.
B = brown fur b = white fur
In the punnett square, what is the probability for white fur?
In the punnett square, what is the probability for white fur?
a)
0%
b)
25%
c)
50%
d)
75%
4.
Which sentence is FALSE?
a)
All organisms have 23 pairs of DNA.
b)
Chromosomes are made of genes.
c)
DNA is made out of 4 chemicals: adenine, cytosine, thymine, guanine
d)
DNA is the recipe for life.
5.
An organism's physical appearance or visible traits is called:
a)
genotype
b)
inherit
c)
gene
d)
phenotype
6.
The process in which a cell splits in two...
a)
cell nucleus
b)
cell division
c)
replication
d)
inherit
7.
True or False? A tightly wound bundle of DNA is a chromosome.
a)
False
b)
True
8.
True or False? The passing of traits from one parent to offspring is heredity.
a)
False
b)
True
9.
True or False? Being in control is known as dominance.
a)
True
b)
False
10.
Homozygous genes are...
a)
same
b)
different
11.
Heterozygous genes are...
a)
same
b)
different
12.
_________ was the scientist who first studied pea plants to learn more about heredity.
a)
Mendel
b)
Einstein
c)
Gregory
d)
Fischel
13.
If both genes for a trait are the same, the offspring is called:
a)
purebred
b)
hybrid
c)
recessive
d)
dominant
14.
Genetic materials is found in the _____________.
a)
Nucleus
b)
mitochondria
c)
chloroplasts
d)
vacuoles
15.
DNA is inside your cells. What part of the cell is the DNA inside of?
a)
cell membrane
b)
cytoplasm
c)
nucleus
16.
The twisted ladder shape of DNA is referred to as a ....
a)
Twizzler candy
b)
twisted ladder
c)
double helix
d)
yo mama
17.
What type of gene can hide the effects of a recessive gene?
a)
inherited trait
b)
learned trait
c)
dominant gene
d)
recessive gene
18.
An organism with one recessive gene and one dominant gene is called a
a)
gene
b)
recessive gene
c)
hybrid
d)
dominant gene
19.
The shape of your nose is which type of trait?
a)
acquired trait
b)
inherited trait
20.
A dog sitting on command is an example of what type of trait?
a)
acquired trait
b)
inherited trait
21.
What is Bb
a)
Homozygous
b)
Heterozygous
c)
Recessive
d)
Dominant
22.
Which gene is heterozygous?
a)
TT
b)
Tt
c)
rr
d)
YY
23.
The two-letter code that describes the genetic traits of an organism is called a-
a)
Phenotype
b)
Genotype
c)
Physical Appearance
d)
Intelligence
24.
How much of your DNA do you inherit from your mom?
a)
10%
b)
25%
c)
50%
d)
it varies
25.
AA and Aa always show up as
a)
dominant
b)
recessive
26.
What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness?
a)
0 in 4
b)
1 in 4
c)
2 in 4
d)
4 in 4
27.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
28.
Which of the characteristics in a lion are will not pass on to its offspring?
a)
fur color
b)
length of tail
c)
scars on leg
d)
body size
29.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
30.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
100 %
