WorksheetsELEM 339: Genes and Heredity
Total questions: 25
Worksheet time: 3hrs 9mins
Name
Class
Date
1.
What would the phenotype be for the offsprings? T is dominant for tall pea plants
a)
50% tall, 50% short
b)
25% tall, 75% short
c)
100% tall, 0% short
d)
75% tall, 25% short
2.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
3.
A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?
a)
25%
b)
50%
c)
75%
d)
100%
4.
Small grains that contain a plant's male reproductive cells.
a)
stamen
b)
pollen
c)
anther
d)
stigma
5.
The physical appearance that a trait takes on:
a)
phenotype
b)
genotype
c)
heterozygous
d)
homozygous
6.
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
7.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender
d)
all of the above
8.
_________________________is the passing of traits from parent to offspring.
a)
Natural Selection
b)
Genetics
c)
Heredity
d)
Cloning
9.
I formed the theory of evolution after my five year trip working as a naturalist on the H.M.S Beagle.
a)
Reginald Punnett
b)
Charles Darwin
c)
Mr. St. Louis
d)
Gregor Mendel
10.
Nature has a way of causing organisms that inherit advantageous traits to survive and reproduce more successfully than the ones that don't. This process is known as...
a)
Natural Selection
b)
Genetic Variation
c)
The Theory of Evolution
d)
Mimicry
11.
A trait or behavior that helps organisms survive and reproduce is an _____________________.
a)
natural selection
b)
dominant trait
c)
adaptation
d)
anti-extinction trait
12.
Any change in the sequence of DNA is...
a)
transgenic shift
b)
Single Genotype
c)
Monohybrid Trait
d)
Mutation
13.
Biodiversity refers to
a)
extinct species that have lived on the earth
b)
the variety of species on Earth
c)
nonrenewable resources found on the earth
d)
the rate of species decline on our planet
14.
What is the advantage of having different shaped beaks?
a)
To look different from other species.
b)
To be able to eat different types of food.
c)
To fly faster.
d)
To confuse scientists.
15.
Which of the following genotypes is pure recessive?
a)
Tt
b)
tt
c)
TT
d)
tT
16.
What word describes this genotype: Bb
a)
purebred
b)
hybrid
c)
homozygous
d)
phenotype
17.
Different types of a same gene are called an __________________
a)
DNA
b)
Gene
c)
Alleles
d)
Nuclei
18.
A _________________ allele shows its trait whenever present.
a)
Dominant
b)
Recessive
c)
Heterozygous
d)
Homozygous
19.
The passing of DNA from parents to offspring
a)
Generation
b)
Heredity
c)
Inheritance
d)
Traits
20.
Who is considered the "Father of Genetics"?
a)
Gregor Mendel
b)
Reginald Punnett
c)
James Watson
d)
Justin Bieber
21.
Which event would result in the production of fraternal twins?
a)
one egg fertilized by two sperm cells
b)
two egg cells fertilized by one sperm cell
c)
two egg cells fertilized by two sperm cells
d)
two eggs develop without fertilization
22.
A woman gave birth to triplets, two identical girls and one boy. The number of egg cells involved would be
a)
1
b)
2
c)
3
d)
4
23.
The purpose of meiosis is to form ________ cells.
a)
body
b)
sex
c)
somatic
d)
brain
24.
A cat has a total of 38 chromosomes in its body cells. How many in its sex cells?
a)
38
b)
19
c)
76
d)
10
25.
Segements of DNA are called _______________________
a)
Genes
b)
Nuclei
c)
genotypes
d)
Chromosomes
100 %
