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Unit 6 Review for Final Exam (Meiosis, Genetics, Protein Synthesis) Flashcards | StudBud
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Unit 6 Review for Final Exam (Meiosis, Genetics, Protein Synthesis)
Unit 6 Review for Final Exam (Meiosis, Genetics, Protein Synthesis)
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(Meiosis, Genetics, Protein Synthesis)
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1
Independent assortment occurs in meiosis to increase diversity. How does it achieve this diversity?
By exchanging parts of homologous chromosomes.
By homologous chromosomes lining up next to each other in random order.
Independent assortment does not create genetic diversity at all in humans.
By moving all chromosomes over to one side of the cell.
2
Woman with
Type B
blood, child with
Type A
blood. Possible blood type genotypes of the father?
IAIB, IBi, IAi
IAIB, IAIA, IAi
IAIB, IBIB, IAIA
IAi, IBIB, IAIA
3
If you cross two pea plants that are both heterozygous for one particular trait, what is the expected genotypic ratio?
1:2
9:3:3:1
1:3:2
1:2:1
4
What is the genotype of an organism?
physical traits/characteristics
genetic allele combination
all the genes
relationship
5
Which of the following statements regarding crossing over is FALSE?
It increases genetic variety.
It happens during anaphase I of meiosis.
It happens between homologous chromosomes.
It never happens during mitosis.
6
This blood type's genotype is ii
Type O
Type B
Type AB
Type A
7
What is the purpose of meiosis?
gametes for sexual reproduction
cell development
cell repair
cell death
8
Human ABO blood type genetics includes...
Complete, Codominance, and Multiple Alleles
Codominance and Multiple Alleles
Complete, Incomplete dominance and Multiple Alleles
Complete dominance and Multiple Alleles
9
Which blood type genotype shows codominance?
IAIB
IAIA
IAi
IBIB
10
A trait for short thumbs appears mostly in men. What is the pattern?
autosomal dominant
autosomal recessive
None
sex-linked recessive
11
Incomplete Dominance: What is chance of getting white rose when crossing red rose with pink
100%
0%
75%
25%
12
DIHYBRID CROSSES represent:
No Inherited Traits
Three Inherited Traits
One Inherited Trait
Two Inherited Traits
13
All A blood type genotypes
IAIA, ii
IAIA, IAi
IAi
IAIB, IAi
14
Phenotypic ratio of dihybrid cross between two heterozygotes:
9:3:3:3
9:3:3:1
9:3:1:1
9:3:3:9
15
Codominance is characterized by the expression of ....
the dominant allele.
Neither
both alleles.
the recessive allele.
16
How does variation occur in a population?
cytokinesis
mitosis
parents' genomes mix producing a combination of traits.
random mutations occurs
17
Which of the following is a similarity that mitosis and meiosis share?
Both result in identical daughter cells.
Both involve one replication of the DNA.
Both result in diploid daughter cells.
Both processes happen in your skin cells.
18
What is incomplete dominance?
Both alleles are expressed and "blend".
Both alleles are recessive.
Neither allele is seen.
Both alleles are dominant.
19
In translation, mRNA ______ bond to tRNA ________. tRNA brings ______ to the ribosome.
DNA; codons; amino acids
codons; anticodons; amino acids
anticodons; codons; amino acids
bases; amino acids; proteins
20
Point mutation or Frameshift mutation: insertion
Not this answer
Frameshift mutation
Point mutation
Not this answer either
21
These are the two steps of protein synthesis.
transcription and analysis
translation and prescription
transcription and translation
transcription and synthesis
22
A cell undergoes meiosis. How do the gametes it produces compare with the original cell and one another?
Gametes half the chromosomes and are genetically identical
gametes half the chromosomes and are genetically different
gametes are genetically identical with the parent cell and one another.
Gametes have one-fourth of the parent cell's chromosomes
23
Which of the following genotypes is heterozygous for two traits?
rryy
RrYy
rrYY
RRYY
24
What is the phenotype of an organism?
genetic allele combination
physical traits/characteristics
relationship
all the genes
25
This is the site of translation in protein synthesis.
ribosome
nucleus
mitochondria
uracil
26
A human has 23 chromosomes in its gametes. How many in their somatic cells?
64
11.5
46
23
27
Insertion mutation
Nothing!
base is replaced with another base
base is removed from sequence
base is added to sequence
28
An example of haploid cell cells in the human body is
skin cell
hair cell
sperm and egg cells
brain cell
29
Transcription makes _______ & translation makes __________________.
mRNA, protein
amino acids, protein
DNA & mRNA
protein, tRNA
