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WorksheetsGenetics
Total questions: 20
Worksheet time: 21mins
Name
Class
Date
1.
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
2.
Two of the same genes for a trait (sometimes called purebred). BB or bb
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
3.
Are recessive traits shown with capital or lowercase letters?
a)
Capital
b)
Lowercase
4.
The physical appearance or the way a gene looks is known as it's....
a)
genotype
b)
allele
c)
gene
d)
phenotype
5.
The different forms of genes are known as
a)
environment
b)
probability
c)
traits
d)
alleles
6.
What is a genotype?
a)
The genetic make up (code)
b)
The physical trait
7.
He is known as the father of modern day genetics.
a)
Gregory Mendel
b)
Greg Mendel
c)
Gregor Mendel
d)
Grace Mendel
8.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
9.
What would the ratio for genotypes be for this Punnett Square?
a)
2Bb:2bb
b)
2BB:2Bb
c)
1BB:2Bb:1bb
d)
4Bb
10.
An allele or gene that always shows is
a)
recessive
b)
dominant
c)
hidden
d)
present
11.
What are the possible phenotypes in this punnett square?
a)
Bb, bb, BB
b)
purple, white
c)
Bb, bb
d)
light purple
12.
Two different genes for a trait (sometimes called hybrid). Bb
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
13.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
14.
G = dominant green and y = recessive yellow
A fish has a Gy genotype, what will its phenotype be?
A fish has a Gy genotype, what will its phenotype be?
a)
yellow
b)
green
c)
greenish-yellow
d)
red
15.
What is a gene?
a)
An entire chromosome that codes for a trait
b)
a piece of clothing
c)
a piece of a DNA on chromosome that codes for a trait
d)
Chemical messengers in your brain that code for a trait
16.
The mathematical chance that something will happen is known as...
a)
chance
b)
luck
c)
probability
17.
A ________________________ is used to predict the possible genotype from certain parents
a)
Mendel Grid
b)
Genetic Tic Tac Toe
c)
Punnett Square
d)
Pedigree Plot
18.
Which is a true statements about this picture?
a)
Brown is recessive
b)
Brown is dominant
c)
Blue is dominant
d)
Blue is codominant
19.
___________________________ is the field of science that studies of how traits are passed on, or inherited.
a)
dominant traits
b)
ratio
c)
phenotype
d)
genetics
20.
Tall is dominant to short. What is the phenotype of this organism?
Tt
Tt
a)
tall
b)
short
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