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Chapter 10 review Flashcards | StudBud
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Chapter 10 review
Chapter 10 review
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Questions
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Answers
1
If a circle is half colored in a pedigree chart, what does that mean
The female has presence of the trait
The male is the carrier of the trait
none of the above
The male has an absence of the trait
2
In pedigree charts, what are represented as circles and squares
circles=male ; squares=female
square=male ; circle=female
square=carrier ; circle=absence of trait
circle=present trait ; square=absence of trait
3
What is NOT true about sex-linked traits
Sex linked trait is a trait in which a gene is located on a sex chromosome
Men are more affected to sex linked traits
Genes are located on the X chromosomes because the Y carries more DNA
X chromosomes contain more genes than Y
4
What is the passing of traits from parents to offspring?
Genotypes
Hereditary
Alleles
Genetics
5
The two alleles that control the phenotype of a trait are called the trait _______
Law of dominance
Dominant
Genotype
Recessive
6
What is the second generation called?
f2
f1
parent generation
f3
7
If both parents alleles are visible in an offspring, what is that called
hereditary
combination
codominance
genetics
8
What chromosomes do females have
YX
XY
XX
9
What is Self-Pollination?
Transfer of pollen to the same flower
Transfer of one plant breed to a different plant breed
Transfer of pollen from one plant to another making a hybrid
Transfer of pollen from one plant breed to the same plant breed
10
_______ can include features of appearance, behavior, metabolism, or anything we can detect
Alleles
Genotype
Genes
Phenotype
11
What is this called
recessive
dominant
incomplete dominance
codominace
12
If an elephant has 28 pairs of chromosome, how many chromosomes does the elephant have in total
46
54
60
56
13
What are copies of genes that are always expressed, or used to make traits, over other alleles called?
Recessive
Dominant
homozygous
phenotype
14
The male chromosomes determines the gender
True
False
15
What is this called
Herditary
DNA model
Ratio
Punnet square
16
What are copies of genes that are not expressed if a dominant allele is around called?
heterozygous
Recessive
Phenotype
Allele
17
How many alleles do we have per gene?
3
2
1
4
18
Why did Mendel use peas? 2 answers
Traits can easily be identified
It was an easy resource to obtain
It was easy to pollinate and fast to grow
The environment where Mendel studied could only grow peas
19
What occurs when multiple genes determine the phenotype of a trait
codominance
incomplete dominance
polygenic inheritance
multiple alleles are expressed
20
what is true about Homologous chromosomes
Paired chromosomes that carry the same gene and same alleles
Paired chromosomes that carry the same genes but maybe not same alleles
are single chromosomes
each pair of chromosomes a comes from only one parent
21
Which is NOT true
The Y chromosome has few genes, but the X chromosome has more than 1,000
female two X chromosome also have the same genes arranged in the same order
Some sex linked traits are baldness and colorblindness
In males, X and Y chromosomes have the same genes
22
If these two plants are genetically identical but grown in different soils, what does that mean
phenotypes are determined by genotype and environment
genetics can be the same just shown different
the flowers are dyed
Alleles can be expressed differently even with the same genes
23
which is NOT true about chromosomes
Gene is section on the chromosome that has genetic information for 1 trait
Carry all the information for living things to grow, survive, and reproduce
Humans have 22 pairs of chromosomes
Exists as pairs
24
What is the Phenotype Ratio of this punnet square
1:3
3:1
1:2:1
2:1:1
25
how many autosomes and sex chromosomes do humans have?
none of the above
22 autosome and 1 sex chromosomes
23 autosomes and sex chromosomes
22 sex chromosomes and 1 autosomes
26
What is the Genotype Ratio of this punnet square
1:3
2:1:1
3:1
1:2:1
27
What is the first generation called?
f2
f3
f1
parent generation
28
There are 23 chromosomes in TOTAL
False
True
29
What are genetics?
study of how traits are passed from parents to offspring
traits passing from parents to offspring
the genes that give the offspring its characteristics
the determination of what characteristics an individual will express
30
If a dominant purple flower ( PP) cross pollinates with a recessive white flower (ww) what will the offspring be?
White
light purple
Purple
purple with white spots
31
What contains DNA tightly coiled around proteins
nucleotide
homologous pair
chromosomes
sex linked traits
32
What is this process called?
Self-Pollination
Cross-Pollination
33
Who is the discover of the Punnet square
Reginald C. Punnet
Gregor Mendel
Albert Einstein
Alfred Wegner
34
Which is homozygous recessive
rr
RR
Rr
35
What determines which characteristics an individual will express?
Allele
Genotype
Phenotype
36
Who is Gregor Mendall?
The father of biology
The father of genetics
The discover of Punnet Square
The father of modern science
37
What is the percentage of having a homozygous recessive
100%
25%
50%
0%
38
Mendel pollinated pisum sativum (peas) to conduct his study
False
True
