WorksheetsGenetics Basics
Total questions: 15
Worksheet time: 30mins
What is an allele?
A slippery, long animal that lives in the water
a version of a trait
a kind of cell that has DNA
If I told you the answer, how are you ever going to learn?
Which of the following are PHENOTYPES?
red hair
Gg
seven toes
SS
cc
Which of the following are GENOTYPES?
crooked pinky finger
Dd
Orange teeth
ff
Which of the following represent DOMINANT alleles?
D
Q
v
P
u
Which of the following represent recessive alleles?
R
r
T
H
y
A genotype with two dominant alleles is known as:
Homozygous dominant
homozygous recessive
heterozygous
A genotype with two different alleles is known as:
homozygous dominant
homozygous recessive
heterozygous
Which genotype is homozygous recessive?
BB
tt
Cc
Which of the following is a homozygous dominant genotype?
tt
gg
WW
Xx
In pea plants, plant height is a genetic trait. Tall (T) is dominant over dwarf (t). Which genotype would produce a dwarf plant?
TT
Tt
tt
In humans, the ability to "roll" your tongue is dominant (R) over not being able to roll your tongue (r). Which of the following genotypes would show a person who CAN roll their tongue?
rr
Rr
RR
The allele for blue eyes is recessive (b). The allele for brown eyes is dominant (B). What color eyes does someone with the genotype bb have?
blue
brown
purplish-green
Blue eyes are dominant in huskies. What genotype(s) might this husky have?
BB
Bb
bb
blue eyes
Monsters with red skin have the dominant trait. Which of the following could be the genotype of this monster?
rr
red skin
Rr
RR
Fluffy feathers (F) are dominant in owls. Flat feathers (f) are recessive. This owl has the genotype Ff. What is his phenotype?
Brown eyes
fluffy feathers
flat feathers
FF
