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Genetics And Heredity
Test Description: Genetics and heredity review
Instructions: Answer all questions to get your test result.
1) If an offspring is said to be homozygous recessive, which of the following could be its genotype?
A
RrSs
B
Tt
C
TTss
D
ss
2) If you wanted to determine the phenotype of an organism and do not know the genotype, what would you do?
A
Do a DNA fingerprint of the organism
B
Do a DNA sequence of the parents
C
Look at the physical characteristics of the organism
D
Do a Punnett square
3) Who is considered the father of genetics?
A
Francis Crick
B
Gregor Mendel
C
Charles Darwin
D
James Watson
4) What is the resulting offspring of different species or varieties called?
A
recessive
B
hybrid
C
dominant
D
purebred
5) Which of the following describes an organism that has two different alleles for a trait?
A
recessive
B
homozygous
C
heterozygous
D
dominant
6) Factors that determine traits and are passed from parents to offspring are called
A
phenotypes
B
genes
C
heterozygous
D
Punnett squares
7) What type of allele overwhelms or masks (hides) another allele?
A
recessive
B
homozygous
C
dominant
D
heterozygous
8) Which one is an example of heterozygous alleles?
A
TT
B
tt
C
Tt
D
dominant
9) A random change made when a gene is reproduced slightly different from the original gene during reproduction is called a
A
clone
B
dominant trait
C
mutation
D
daughter cell
10) Meiosis is a type of
A
asexual reproduction
B
dominant trait
C
sexual reproduction
D
gene
11) What is the order of the stages of the meiosis?
A
anaphase 1, anaphase 2, metaphase 1, metaphase 2, prophase 1, prophase 2, telophase 1, telophase 2
B
metaphase 2, anaphase 2, telophase 2, prophase 2, metaphase 1, anaphase 1, telophase 1, prophase 1
C
prophase 1, metaphase 1, anaphase 1, telophase 1, prophase 2, metaphase 2, anaphase 2, telophase 2
D
prophase 1, prophase 2, metaphase 1, anaphase 2, telophase 1, telophase 2, metaphase 2, anaphase 1
12) The purpose of meiosis is to make sperm and egg cells, also known as
A
chromosomes
B
gametes
C
alleles
D
zygotes
13) This cross is used to predict the probability of an inherited trait
A
mutation
B
clone
C
Punnett square
D
allele
14) The genetic code or allele combination of an organism is
A
genotype
B
dominant
C
recessive
D
phenotype
*select an answer for all questions
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