NEW
Font size
S
M
L
XL
WorksheetsGenetics
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
A ________________________ is a tool used to predict the possible genotype from certain parents
a)
Mendel Grid
b)
Genetic Tic Tac Toe
c)
Punnett Square
d)
Pedigree Plot
2.
The dominant trait is
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
d)
Jolly green giant
3.
What are the possible genotypes for this cross?
a)
TT = 25% Tt= 50% tt=25%
b)
all tall
c)
TT= 75% tt = 25%
d)
Tt = 100%
4.
___________________________ is the study of how traits are passed on, or inherited.
a)
dominant traits
b)
ratio
c)
phenotype
d)
genetics
5.
Two brown eyed parents which are both heterozygous(Bb) have a baby. What is the possibility of the baby being blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
6.
How many alleles (letters) does a child get from EACH parent for each trait?
a)
1
b)
2
c)
3
d)
4
7.
What term describes what you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
8.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both
9.
Two heterozygous parents produce offspring. What is the probability of the HETEROZYGOUS GENOTYPE appearing in the offspring generation?
a)
75%
b)
25%
c)
50%
d)
100%
10.
Two heterozygous parents produce offspring. What is the probability of the HOMOZYGOUS DOMINANT GENOTYPE appearing in the offspring generation?
a)
75%
b)
25%
c)
50%
d)
100%
11.
HH crossed with Hh. What is the probability of hh?
a)
0%
b)
25%
c)
50%
d)
100%
12.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
13.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
14.
True or False: Recessive traits are ALWAYS present
a)
True
b)
False
15.
Offspring receives two sets of _____________ (one from each parent)
a)
blue jeans
b)
genes
c)
machines
d)
pedigree
16.
_____________________ is the appearance of an organism, or how it looks
a)
phenotype
b)
ratio
c)
recessive trait
d)
heredity
17.
A mismatched pair of alleles is called
a)
dominant
b)
recessive
c)
heterozygous
d)
homozygous
18.
A matching pair of alleles are called
a)
dominant
b)
recessive
c)
heterozygous
d)
homozygous
19.
What would the genotypes be?
a)
TT, TT, Tt, Tt
b)
TT, Tt, Tt, tt
c)
Tt, Tt, tt, tt
d)
None of the above
20.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
21.
Which of the following alleles is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
22.
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
23.
G = green, g = yellow
The genotype for a yellow plant is...
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
24.
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
25.
AA and Aa always show up as
a)
dominant
b)
recessive
Reset
