WorksheetsGenetics: Genotypes and Phenotypes -- Part A
Total questions: 31
Worksheet time: 16mins
Gene trait that is represented by single letters. Example: B, b
Genotype
Allele
Phenotype
A combination of alleles. Example: BB, Bb, bb,
Genotype
Allele
Phenotype
Observable trait description. Words that describe a trait.
Genotype
Allele
Phenotype
Both alleles for a gene are identical (the same).
Homozygous
Heterozygous
The alleles for a gene are different. (Called hybrids).
Homozygous
Heterozygous
Both Homozygous Dominant (BB) and Homozygous Recessive (bb) are also called purebreds
True
False
The genotype Bb is _____________________.
Homozygous
Heterozygous
The genotype bb is __________________ .
recessive
dominant
For a cross to be _________________ at least one capital letter must be present in genotype.
recessive
dominate
Which genotype is homozygous dominant?
BB
Bb
bb
Which genotype is homozygous recessive?
BB
Bb
bb
Which genotype is heterozygous?
BB
Bb
bb
Each parent provides what percentage of your traits?
25%
50%
75%
100%
Which of the following is an example of a homozygous genotype?
Rr
rr
NN
Nr
Which of the following is an example of an allele?
H
HH
Hr
RRR
If your genotype is Bb, what type of trait would you express as a phenotype?
Dominant
Recessive
Both the dominant and recessive traits
A recessive allele is written as a(n)
lower case letter
upper case letter
hashtag
smiley face
In the Greek language, "hetero" means
same
different
burrito
In the Greek language, "homo" means
same
different
human
mojo
An example of a heterozygous gene is
FF
ff
Ff
An example of a homozygous recessive gene is
Dd
DD
dd
DAB
What is genetics?
The study of how traits are passed down
The study of the Earth
The study of force and motion
The study of energy
Gregor Mendel discovered properties of heredity by experimenting on _____________.
Chromosomes
Human eye color
Pea Plants
Flowers
How are alleles represented in genetics?
Numbers
Letters
Emojis
Scientific Names
Which type of gene can prevent another gene from "showing"?
Dominant
Recessive
In genetics, dominant alleles are usually represented by
capital letters
lower case letters
math symbols
fractions
When an organism has two different alleles, it's called
purebred
dominant
heterozygous
recessive
If a pea plant were homozygous recessive for height, how would its alleles be represented?
Tt
TT
tt
tT
