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AP Biology Review of Heredity vocabulary

Total questions: 45

Worksheet time: 38mins

Name
Class
Date
1.
The trait that covers up the other trait and is written as an uppercase letter is called the
a)
Dominant Trait
b)
Homozygous Trait
c)
Recessive Trait
d)
Heterozygous Trait
2.
This is the word for the genetic code of a trait...
a)
Genes
b)
Phenotype
c)
Alleles
d)
Genotype
3.
___________ make up DNA.
a)
Chromosomes
b)
Genes
c)
Dominant
d)
Cells
4.
The physical appearance of a trait is also known as the _______________________.
a)
Alleles
b)
Genotype
c)
DNA
d)
Phenotype
5.
This is the word for the trait that is covered up by another form of that trait and is written as a lowercase letter....
a)
Recessive
b)
Homozygous
c)
Heterozygous
d)
Dominant
6.
______________ makes up chromosomes
a)
Cells
b)
DNA
c)
Alleles
d)
The nucleus
7.
This is the study of the passing on of traits from parent to offspring.
a)
Heredity
b)
Genetics
8.
This is the passing of traits from parents to offspring.
a)
Heredity
b)
Genetics
9.
Describes an organism with two alleles for one trait that are the same.
a)
Genotype
b)
Heterozygous
c)
Homozygous
d)
Phenotype
10.
_____________ make up genes.
a)
DNA
b)
Chromosomes
c)
Alleles
d)
Cells
11.
Describes an organism with two alleles for one trait that are different.
a)
Genotype
b)
Heterozygous
c)
Homozygous
d)
Phenotype
12.
_________ make(s) up chromosomes.
a)
DNA
b)
Cells
c)
Organs
d)
Dominant
13.

On what structures do we find genes?

a)

genes

b)

alleles

c)

chromosomes

d)

traits

14.

What is an allele?

a)

a pair of chromosomes

b)

the study of heredity

c)

a dominant trait

d)

different forms of a gene

15.

What type of gene is ALWAYS expressed if it is present?

a)

recessive

b)

dominant

c)

allele

d)

hybrid

16.

What word describes someone who has two DIFFERENT alleles for a certain trait

a)

homozygous

b)

purebred

c)

heterozygous

17.

What is another word for heterozygous?

a)

homozygous

b)

hybrid

c)

heredity

d)

purebred

18.

What is a genotype?

a)

the genes you have

b)

your physical characteristics

19.

a tool used to predict the results from crossing 2 sets of allelles

a)

microscope

b)

Punnett square

c)

Jawsome trapezoid

20.

aa, bb

a)

heterozygous

b)

homozygous dominant

c)

homozygous recessive

21.

CC, DD, EE

a)

heterozygous

b)

homozygous dominant

c)

homozygous recessive

22.

Tt, Bb, Ww

a)

heterozygous

b)

homozygous dominant

c)

homozygous recessive

23.

nn, ww, gg

a)

heterozygous

b)

homozygous dominant

c)

homozygous recessive

24.

BB, RR, TT

a)

heterozygous

b)

homozygous dominant

c)

homozygous recessive

25.

Rr, Ff

a)

homozygous

b)

heterozygous

26.

TT, tt

a)

homozygous

b)

heterozygous

27.
When alleles are neither dominant nor recessive (As a result, both alleles are expressed in the offspring.).
a)
codominance
b)
probability
c)
recessive allele
d)
Punnett Square
28.
A new organism begins to form when egg and sperm join in a process called
a)
fertilization
b)
phenotype
c)
homozygous
d)
heterozygous
29.
Segments of DNA are called _______________________
a)
Genes
b)
Nuclei
c)
genotypes
d)
Chromosomes
30.
When does crossing over occur?
a)
Interphase
b)
Prophase 1
c)
Prophase 2
d)
Metaphase 1
31.

If a stem cell (body cell) has 24 chromosomes, how many will it have at the end of meiosis?

a)

24

b)

12

c)

6

d)

the number varies per species

32.

Meiosis results in ______.

a)

4 genetically unique haploid gametes

b)

4 genetically unique diploid cells

c)

2 genetically identical cells

d)

4 genetically identical cells

33.
The chromosomes that pair up during meiosis, are called __________ chromosomes.  
a)
homozygous 
b)
asexual
c)
homologous
d)
genes
34.
When homologous chromosomes match up, they form a structure call a ___________.
a)
tetrad
b)
triad
c)
diploid
d)
gamete
35.
What phase is  shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
36.

Two processes that increase genetic variation during meiosis are crossing over and _____

a)

Synapsis

b)

Tetrad

c)

Independent assortment

d)

Gameiosis

37.

A haploid cell has

a)

three sets of chromosomes

b)

one set of chromosomes

c)

two sets of chromosomes

d)

four sets of chromosomes

38.
Human eggs and sperm are _____, and each has ____ chromosomes.
a)
diploid, 23
b)
diploid, 46
c)
haploid, 23
d)
haploid, 46
39.
What kind of cells are made in MEIOSIS?
a)
Haploid Gametes
b)
Diploid Somatic Cells
c)
Skin Cells
d)
Liver Cells
40.
A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?
a)
20
b)
40
c)
80
d)
160
41.

What is one of the advantages of reproducing sexually versus asexually?

a)

underproduction of offspring

b)

overproduction of offspring

c)

genetic variation

d)

artificial selection

42.
What phase is represented?
a)
metaphase 1
b)
metaphase 2
c)
anaphase 1
d)
anaphase 2
43.
Identify the phase.
a)
Telophase I
b)
Telophase II
c)
Metaphase I
d)
Metaphase II
44.

Haploid cells are represented by

a)

2n

b)

n

c)

1/2 n

d)

4n

45.
Chiasmata are what we see under a microscope that let us know which of the following is occurring?
a)
Crossing over
b)
Anaphase II
c)
Meiosis II
d)
e. Separation of homologs

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