wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

IB Bio III Genetics & Inheritance Overview

Total questions: 40

Worksheet time: 2hrs 33mins

Name
Class
Date
1.
Heterozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
2.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both 
3.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
4.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
5.
B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 
a)
0%
b)
25%
c)
50%
d)
75%
6.
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
a)
0%
b)
25%
c)
50%
d)
75%
7.
Which of the following alleles is homozygous (purebred) recessive?
a)
Tt
b)
tt
c)
TT
d)
t
8.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
9.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
10.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
11.

Homozygous is when...

a)

the alleles are the same

b)

the alleles are different

c)

the alleles are absent

d)

the alleles are present

12.

Select all the examples of a gene

a)

black hair

b)

hair color

c)

height

d)

green eyes

e)

diseases

13.

Select all the examples of a allele

a)

black hair

b)

hair color

c)

height

d)

green eyes

e)

diseases

14.

What is the genotype?

a)

how the alleles are (genetic makeup)

b)

how the organism looks

c)

how the organism acts

d)

how the alleles look

15.

What is the phenotype?

a)

how the alleles are (genetic makeup)

b)

how the organism looks

c)

how the organism acts

d)

how the alleles look

16.

Ken is blood type B and Sally is blood type A. How can they have children who are types A, B, AB, and O?

a)

Ken: IBi

Sally: IAi

b)

Ken: IBIB

Sally IAi

c)

Ken: IBi

Sally: IAIA

d)

Ken: IBIB

Sally: IAIA

17.
Orange or black fur is a single, X-linked co-dominant trait in cats.  Calico cats have white fur with patches of orange and black.  Is it true that calico cats can only be female?
a)
Yes, because they have 2 'X' chromosomes, and therefore can have both the orange and black alleles (XOXB)
b)
No, males can be calico because they can have both the alleles for orange and black (XOYB)
c)
Yes because the trait is found on the X chromosome (XOBX)
d)
No, males can be calico because the trait is found on the X chromosome (XOBY)
18.

By looking at the pedigree, what type of inheritance does Huntington's Disease show?

a)

Autosomal dominant

b)

Autosomal recessive

c)

Sex-linked dominant

d)

Sex-linked recessive

e)

Autosomal co-dominant

19.
Wet earwax is a dominant trait (E), dry earwax is recessive trait (e).  What is the sex, phenotype, and genotype of individual III-1?
a)
female, wet earwax, Ee
b)
female, dry earwax, ee
c)
female, wet earwax EE
d)
female, wet earwax, cannot tell genotype
20.
Colorblindness is more common in males than in females because......
a)
fathers pass the allele for colorblindness to their sons only
b)
the allele for colorblindness is located on the Y chromosome
c)
the allele for colorblindness is recessive and located on the X chromosome
d)
males who are colorblind have two copies of the allele for colorblindness
21.

Bob is blood Type B and Hilda is Type A, their son Barry is Type O. What are the only possible genotypes of Bob and Hilda?

a)

Bob: IBi

Hilda: IAi

b)

Bob: IBi

Hilda: IAIA

c)

Bob: IBIB

Hilda: IAi

d)

Bob: IBIA

Hilda: IAi

22.
Males are more likely to suffer from a sex-linked disease or disorder because...
a)
males are the weaker sex
b)
males have less DNA
c)
males have 1 X chromosome, so the disorder is more likely to be expressed
d)
females are the stronger sex
23.
Which of the following statements about homologous chromosomes is correct?
a)
Each gene is at the same locus on both chromosomes
b)
They are two identical copies of a parent chromosome which are attached to one another at the centromere
c)
They always produce identical phenotypes
d)
They are chromosomes that have identical genes and alleles
24.
What happens in crossing over?
a)
Exchange of genes during metaphase of mitosis
b)
Random distribution of chromosomes during meiosis
c)
Exchange of genetic material between homologous chromosomes
d)
Homologous chromosomes fail to separate during meiosis
25.
A cell in the testis of a male chimpanzee contains 2n=48 chromosomes.  It then undergoes meiosis.  How many molecules of DNA will be present in the nucleus of the sperm cells just after meiosis?
a)
96
b)
48
c)
24
d)
12
26.
How many autosomes are there in a human sperm?
a)
1
b)
22
c)
23
d)
46
27.

_________ is the genetic make-up of an individual organism. Your ____________ functions as a set of instructions for the growth and development of your body.

a)

Phenotype

b)

Genotype

c)

Karyotype

d)

Chromosome

28.

What is this a picture of? Hint: Its an organized picture of your Chromosomes.

a)

electrophoresis

b)

denaturing

c)

Karyotyping

d)

Autosomes

29.

______________ is the observable physical or biochemical characteristics of an individual organism, determined by both genetic make-up and environmental influences

a)

Genotype

b)

Phenotype

c)

Karyotype

d)

Chromosome

30.

What is an Allele?

a)

An allele is a viable DNA (deoxyribonucleic acid) coding that occupies a given locus (position) on a chromosome

b)

An allele is a viable chromosome (deoxyribonucleic acid) coding that occupies a given locus (position) on a protein

c)

a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of DNA

d)

a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

31.

having two different alleles of a particular gene or genes.

a)

homozygous

b)

recessive trait

c)

heterozygous

d)

zygote

32.

having two identical alleles of a particular gene or genes

a)

homozygous

b)

heterozygous

c)

dominant trait

d)

zygote

33.

Why does sickle cell disease run in families, yet is not present in every generation?

a)

It is dominant, so for a person to have it, the person must inherit the gene from both parents.

b)

It is recessive, so for a person to have it, the person must inherit the gene from both parents.

c)

It is recessive, so for a person to have it, the person must inherit the gene from one parent.

d)

It is not hereditary. Sickle Cell is is random and people randomly get it.

34.

Fill in the blank squares. (there are 2 answers)

a)

RrTT

b)

RRTt

c)

rrTT

d)

rrTt

35.

(3.4) A single gene with two alleles codes for the fruit color (red and yellow) of tomato plants. Two tomato plants heterozygous for fruit color are crossed. The table shows the results of the cross. Based on the results, what is the most likely inheritance pattern of the alleles for fruit color?

a)

The alleles for red color and for yellow color are polygenic.

b)

The alleles for red color and for yellow color are codominant.

c)

The allele for red color is recessive to the allele for yellow color.

d)

The allele for red color is dominant to the allele for yellow color.

36.

(3.4) When red-flowered snapdragon plants are crossed with white-flowered snapdragon plants, all the offspring have pink flowers. Based on these results, which of the following inheritance patterns determines flower color in snapdragons?

a)

incomplete dominance

b)

multiple allele

c)

polygenic

d)

sex-linked

37.

(3.5) Mice with the same parents can have different traits. Which of the following best explains how most of these differences occur?

a)

Gametes join by binary fission.

b)

Cells divide by asexual reproduction.

c)

Genes assort independently during meiosis.

d)

Spontaneous mutations occur during mitosis.

38.

(3.5) Six puppies from a single litter have the following genotypes for a certain trait: AA, Aa, AA, aa, aa, Aa. Which of the following describes how these alleles were passed on from parent to offspring?

a)

Each parent dog randomly passed on a dominant allele (A) or a recessive allele (a) to each offspring.

b)

The male dog passed on a dominant allele (A) to each female offspring and a recessive allele (a) to each male offspring.

c)

The female dog chose to pass on either homozygous dominant alleles (AA) or homozygous recessive alleles (aa) to each offspring.

d)

One parent dog passed on a dominant allele (A) to each offspring, and the other parent dog passed on a recessive allele (a) to each offspring.

39.

(3.5) Which of the following laws or principles states that the two alleles of a gene pair separate during gamete formation?

a)

law of segregation

b)

principle of linkage

c)

principle of dominance

d)

law of independent assortment

40.

(3.6) Many ranchers prefer cattle without horns. The presence or absence of horns is genetically determined. The allele for the absence of horns (A) is dominant to the allele for the presence of horns (a). A male with horns is mated with a heterozygous female without horns. What percentage of the offspring would be expected to have horns?

a)

25%

b)

50%

c)

75%

d)

100%

Similar Resources on Wayground

Biology Unit-3 Test

40 questions

Biology Unit-3 Test

quiz

Worksheet

•

11th - 12th Grade

Ecosystem

40 questions

Ecosystem

quiz

Worksheet

•

12th Grade

Yr 11 Bio: Cell size, structure and function

40 questions

Yr 11 Bio: Cell size, structure and function

quiz

Worksheet

•

11th - 12th Grade

Human digestion

45 questions

Human digestion

quiz

Worksheet

•

10th - 12th Grade

KUIS EUDIKOT

35 questions

KUIS EUDIKOT

quiz

Worksheet

•

University

Biology 10

40 questions

Biology 10

quiz

Worksheet

•

10th Grade

Biology Prefixes and Suffixes

41 questions

Biology Prefixes and Suffixes

quiz

Worksheet

•

9th - 10th Grade

Protein Engineering - Retest

45 questions

Protein Engineering - Retest

quiz

Worksheet

•

University