stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
BIOL 350 Exam 3 Review Flashcards | StudBud
Explore
/
BIOL 350 Exam 3 Review
BIOL 350 Exam 3 Review
25 terms
·
StudBud Administration
·
49 plays
Imported from external platform
Flashcards
25 cards
F
Practice quiz
P
Host live
L
Questions
25
Answers
1
A heritability value (
H
2
) of 0 indicates which of the following?
None of the above
All of the phenotypic variation is due to the genetic variation
The population may not have genetic variability at the relevant loci
There is no significant difference between two populations
2
The average number of acorns produced by each genotype is shown. What is the coefficient of selection (s) for
M
?
0.7
0.9
0.67
0.1
3
You are researching a population with a certain SNP. Below is a genotyped sample. What is the frequency of the G allele?
0.517
0.643
0.475
0.719
4
What would you call organisms that have the following genome:
MM N OO
Triploid
Monoploid
Trisomic
Monosomic
5
Which of the following regarding narrow-sense heritability is true?
A lower h2 value means the trait is more due to additive genetic factors.
A higher h2 value means the trait is more responsive to selection.
An h2 value of 1 means the trait is due to genetic factors.
A higher h2 value means the trait is less responsive to selection.
6
What would you call organisms that have the following genome:
MMM NNN OOO
Monoploid
Triploid
Monosomic
Trisomic
7
Which of the following is
false
of short end reads?
Short end reads build contigs that overlap
The whole sequence is read in one read
A DNA sequence is broken into many small fragments
Short end reads are done by Illumina
8
Nondisjunction occurs during:
Telophase I
Anaphase I
Anaphase II
Metaphase II
9
The type of chromosomal mutation that involves an inversion of a segment that includes the centromere is:
Deletion
Reversion
Paracentric inversion
Pericentric inversion
10
Which is NOT a component of the Neutral Theory?
Positive selection and adaption is extremely rare
Most new mutations are deleterious and removed by purifying selection
Mutations are driven by natural selection, leading to population adaptation
Polymorphism & divergence reflect neutral variation that drifts to fixation
11
Sex chromosomes may have variable expression. In calico cats, one of their X chromosomes are inactivated. This is:
Dosage compensation
Nondisjuction
Incomplete penetrance
Variable expressivity
12
In a population, the genotype frequencies at one locus are
0.1 AA
,
0.4 Aa
, and
0.5 aa
. The frequency of the A allele is:
0.2
0.7
0.3
0.6
13
Which of the following regarding broad-sense heritability is true?
An H2 value of 1 means the trait is due to additive genetic factors.
An H2 value of 1 means the trait is due to environmental factors.
An H2 value of 0 means the trait is due to genetic factors.
An H2 value of 0 means the trait is due to environmental factors.
14
Which functional genomic technique sequences individuals and can find genotypes? (Multiple Answers)
Illumina
SNP array
RNA-seq
ChIP-seq
15
The beta-globin gene in lemur and alpha-globin in macaque diverged via a gene duplication event. This means they are:
Orthologs
Outgroups
Paralogs
Non-homologous
16
To predict how the mean phenotype will change in response to selection, you need to know ______.
The narrow heritability of the trait for the population
The phenotypic variation in the population
The norm of reaction
The broad heritability of the trait for the population
17
Who's the racist?
Charles Darwin
Carl Linneaus
Friedrich Tiedemann
George Morton
18
The heterozygote genotype frequency term for a gene with the two alternate alleles A and a in the HW equation is:
2pq
p2
1 - p2
1 - q2
19
Which of the following has more important value to the plant or animal breeder?
Dominance deviation
Additive deviation
Correlation
Broad-sense heritability
20
What set of genes is orthologous?
lemur alpha-globin & lemur beta-globin
None of the above
lemur beta-globin & macaque alpha-globin
lemur alpha-globin & macaque alpha-globin
21
What is the ultimate source of all genetic variation?
Migration
Polymorphism
Mutation
Selection
22
The amount of milk produced per day by a cow is an example of a:
Discrete trait
Dominant trait
Continuous trait
Meristic trait
23
Which of the following statements is true?
Individuals with the same genotype may have different phenotypes
All of the above
Individuals with the same phenotype may have different genotypes
A trait can be influenced by multiple genes
24
In QTL:
genetic markers are tested for association between genotype and phenotype.
genetic markers are tested for association between marker and phenotype.
25
The narrow sense heritabilities for certain traits are shown here. Which trait is least susceptible to selection?
% Protein in milk
Feed efficiency
Milk yield
Calving interval
