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Biology: Ch. 12 Genetics Review Flashcards | StudBud
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Biology: Ch. 12 Genetics Review
Biology: Ch. 12 Genetics Review
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Review for Genetics Test
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
If an organism shows a recessive phenotype, it can be:
only TT
TT or Tt
only Tt
only tt
2
If you cross a PURE short with a PURE tall plant, what % of the offspring will be heterozygous?
100%
75%
25%
50%
3
The following is for horses RR: red Rr: red & white rr: white. Name the type of dominance.
Pleiotropy
Codominance
Incomplete dominance
Environmental influences
4
If a genotype is Rr, the __________ trait will be expressed, assume complete dominance
Dominant
Genetic
Autosomal
Recessive
5
Another name for heterozygous is _____
Hybrid
Recessive
Dominant
Pure
6
Which term would be used for an allele that can mask the expression of another?
Locus
Punnett
Dominant
Recessive
7
A single trait cross is known as:
dyhybrid cross
monohybrid cross
trihybrid cross
An uno cross
8
If a parent genotype is RRAA, the alleles would be:
RA, Ra, RR, AA
RrAa
RA, RA, RA, RA
RR, AA
9
Which of the following is a phenotype?
hair color
homozygous dominant
homozygous recessive
heterozygous
10
The only blood type to be considered "recessive" because it lacks antigens.
Type O
Type A
Type AB
Type B
11
Creating a DIHYBRID cross between two
heterozygotes
will create a ___ ____ ___ ___ ratio
8,4,3,1
4,4,4,4
9,3,3,1
8,8,0,0,
12
Which law says each individual has 2 factors for each trait and only one is passed to offspring
Law of dominance
Law of independent assortment
Law of Segregation
Law of genetics
13
Tt X Tt are crossed and the trait is completely dominant, what % will be heterozygous?
100%
25%
75%
50%
14
Which of the following terms is represented by word descriptions, such as brown or tall
Phenotype
Dominance
Genotype
Allele
15
A person with A- blood can receive which of the following?
AB+
B-
A+
O-
16
When a new phenotype is
blended
together between 2 homozygous parents, it is:
Codominant
Incomplete recessive
Incomplete dominance
Intermediate dominant
17
What type of plant did Mendel experiment with?
Sunflowers
Blueberries
Maple trees
Pea plants
18
Who is the father of genetics
Charles Darwin
Benjamin Franklin
Gregor Mendel
Mr. Cernobyl
19
Which of the following is NOT pure?
TtRr
TTRR
ttrr
TtRR
20
Another name for homozyous is _______
Recessive
Dominant
Hybrid
Pure
21
Tt X Tt are crossed and the trait is completely dominant, what % will be tt?
50%
25%
100%
75%
22
The branch of Biology that studies heredity is known as:
Embryology
Traitology
Botany
Genetics
23
What is the only blood type we
cannot
safely give Kara?
AB+
O-
B-
A-
24
When an organism has two identical alleles for a trait, we say it is:
Phenotype
Homozygous
Hybrid
Heterozygous
25
What is Kara's blood type?
AB-
O+
B-
AB+
26
Assuming complete dominance, Crossing two heterozygotes in a MONOhybrid, what % will express the dominant trait?
100%
75%
50%
25%
27
An example of a heterozygous genotype is:
PT
pp
Pp
PP
28
A drawing used to trace traits through a family is known as a(n):
Test cross
Allele
Gamete
Pedigree
29
In a recessive disorder, individuals who have the recessive gene but not the disorder are:
Codominant
Autosomal
Sex-linked
Carriers
30
An example of a homozygous genotype would be:
RW
RR
rR
Rr