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Duplicate of Genetics Unit Review Flashcards | StudBud
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Duplicate of Genetics Unit Review
Duplicate of Genetics Unit Review
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review of genetics unit for GB2
Flashcards
62 cards
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Practice quiz
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Questions
62
Answers
1
The principle of segregation refers to the segregation of:
dihybrids
alleles
genes
heterozygous
2
What would the offspring be of the Tall, round seed plant and the dwarf, wrinkled seed plant?
Tall, Round Seeds
dwarf, wrinkled seeds
Tall, wrinkled seeds
dwarf, Round Seeds
3
What does sex-linkage mean?
Genes carried on the X chromosomes
Genes carried on different autosomal chromosomes
Genes carried on the same autosomal chromosomes
4
The device illustrated used to organize genetic analysis is called a
phenotypic paradox
genetic graph
punnett square
Mendelian box
5
Parent:
NnPp x nnpp.
Which of these would be a correct recombinant vs parental analysis?
B
A
D
C
6
Meiosis ensures that sperm/egg receive only ___ copy of each gene
2
3
4
1
7
How many genes are involved in a dihybrid cross?
1
4
3
2
8
What is the inheritance pattern of this trait?
X-linked Recessive
Autosomal Recessive
Autosomal Dominaint
X-linked Dominant
9
What does this symbol represent?
Affected female
Affected male
Unaffected male
Unaffected female
10
What is the genotype indicating a person is male?
XX
YY
XXY
XY
11
What do the letters inside the squares of a Punnett square represent?
offspring genotype
parent genotype
grandparent genotype
12
Independent assortment proves that _____ can be inherited separately from each other
Chromosomes
Segregation
Alleles
Genes
13
What is the pattern of inheritance of the following trait?
Autosomal Recessive
X-linked Recessive
X-Linked Dominant
Y-Linked
14
The ABO blood gene is an example of
Codominance
Multiple alleles
Incomplete dominance
A polygenic trait
15
What does this symbol represent?
Unaffected female
Affected female
Unaffected male
Affected male
16
________ also means self-pollinating
In-bred
White bread
Cross-bred
True-bred
17
A situation in which the expression of one gene blocks the expression of another is called
Epistasis
Incomplete dominance
Dominance
Codominance
18
Freckles is dominant trait. What is the phenotype of box 1?
freckles
no freckles
19
Two heterozygous tall pea plants are crossed. What is the phenotypic outcome?
100% tall
50% tall, 50% short
100% short
75% tall, 25% short
20
What process produces recombination?
Crossing Over
Independent Assortment
Mitosis
Fertilization
21
Which of the following genotypes could be described as homozygous?
BbAa
Bb
BB
bbAA
22
The 2 alleles you have for a gene make up your
Genotype
Homozygous
Heterozygous
Phenotype
23
How many alleles for each gene can be found in an egg or a sperm cell?
3
2
4
1
24
True or false: linked genes are
always
inherited together
?¿?
YUP
NOPE
25
Which is true of autosomal dominant inheritance?
Affects more females than males
All offspring of affected parents are affected
Affected offspring have at least one affected parent
Unaffected parents can have affected offspring
26
Which pair of genes are most likely to be linked?
C & D
C & B
D & A
B & A
27
Crossing a homozygous red bull with a homozygous white cow makes Roan (red and white spotted) offspring due to
Incomplete dominance
Dominance
Independent assortment
Codominance
28
Which is true of X-linked dominant inheritance?
Affected males have affected sons
Affected mothers must have affected sons
Affected females pass on to all offspring
Affected fathers pass on trait to all daughters
29
Heredity is
Genes
Alleles
The inheritance of traits
Proteins
30
Based on this picture and your previous work, do you think the genes N and P are linked?
Idk
No
Its up in the air
Yes
31
What are linked genes?
Genes that are far apart on the same chromosome
Genes near each other on a chromosome that inherit together
Genes that produce the same phenotype
Genes that can be found on two different chromosomes
32
The likelihood something will happen is called
Destiny
Probability
Luck
Karma
33
What is genetic recombination?
When genes move via transposons
The exchange of genes between two organisms
When offspring have combos of traits different from parents
When genes combine in fertilization, producing a zygote
34
How many traits was Mendel analyzing (at a time) in his monohybrid cross experiments?
one
three
four
two
35
Which of the following represents a heterozygous genotype?
Tt
tt
TT
36
Having two different alleles for the same gene is called
dominant
heterozygous
recessive
homozygous
37
Cross-breeding the P-generation created F
1
plants that were
Homozygous
Hybrids
Heterozygous
Pure
38
Saying a cat has black fur describes its:
phenotype
recessive
genotype
genetics
39
The unit that controls heredity is called a
DNA
Enzyme
Proteins
Gene
40
The principle that resulted from Mendel's 2-factor cross
Independent Assortment
Codominance
Dominance
Segregation
41
Explain the inheritance of this rare trait in the pedigree.
Autosomal Dominant
X-Linked Recessive
Autosomal Recessive
Y-Linked
42
The generation that Mendel crossed to make his F
2
generation were the:
F1 generation
Parents
P generation
F2 generation
43
Which chromosome are sex linked conditions, such as haemophilia or r-g colourblind, carried on?
1
Y
21
X
44
If the parent plants have 100 offspring, how many will be short?
50%
100%
25%
75%
45
Which is true of Y-linked inheritance?
All male offspring of affected males are affected
All offspring of affected males are affected
Very common traits
Only females are affected
46
What allele interaction leads to two dominant alleles for the same gene being expressed?
Codominant
Dominant
Recessive
Corecessive
47
Human variation in skin color, hair color, & height are all the result of
Polygenic traits
Codominance
Incomplete dominance
Multiple alleles
48
The branch of math that studies probability is
Geometry
Algebra
Statistics
Calculus
49
A recessive trait would appear in the phenotype of which of these?
TS
Tt
TT
tt
50
If R=Round and r=wrinkled, whilst G=Yellow and g=green for peas, what does RrGg code for?
wrinkled and green
Round and green
wrinkled and Yellow
Round and Yellow
51
Crossing homozygous red snapdragons with homozygous white yields 100% pink due to
Dominance
Codominance
Independent assortment
Incomplete dominance
52
If two heterozygous tall plants are crossed, what are the possible genotypes of the offspring?
TT only
TT and tt only
TT, Tt, and tt
tt only
53
When many ______ control a trait, you will have more phenotypes
Proteins
Alleles
DNA
Genes
54
What type of inheritance pattern is shown?
X-Linked Dominant
Autosomal Dominant
Autosomal Recessive
X-Linked Recessive
55
A single gene may lead to multiple phenotypic results in an individual (see image). This is an example of
Incomplete Dominance
A Polygenic Trait
A Pleiotropic Trait
Codominance
56
The only way someone can display a recessive phenotype is if they are _________ for that trait
Heterogeneous
Heterozygous
Homozygous recessive
Homozygous dominant
57
A person who inherits a Brown eye allele and a blue eye allele will have brown eyes because of
Principle of Codominance
Principle of Dominance
Principle of Incomplete dominance
Principle of Segregation
58
What is the typical Mendelian Ratio when two heterozygous parents for two genes reproduce?
9:3:3:1
1:2:1
1:1:1:1
1:1
59
Meiosis makes
Gametes
Eggs
Sperm
Sex cells
60
Which is true of X-linked recessive inheritance?
Affects more males than females
All daughters of affected mother are affected
Every daughter of affected male must be affected
Affected males pass on to sons
61
Freckles is a dominant trait. What is the genotype of box 4?
FFff
Ff
ff
FF
62
Different forms of a gene are called
Alleles
Genes
DNA
Proteins