BIO 182 EXAM 1 ASU PRACTICE QUESTIONS WITH ALL CORRECT ANSWERS UPDATED
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Course
BIO 182
Institution
BIO 182
BIO 182 EXAM 1 ASU PRACTICE QUESTIONS WITH ALL CORRECT ANSWERS UPDATED
Independent Assortment - Answer-The Mendelian principle stating that the alleles of genes are sorted into gametes, sperm, and eggs independently from each other with an equal and random chance of either allele going into each...
BIO 182 EXAM 1 ASU PRACTICE
QUESTIONS WITH ALL CORRECT
ANSWERS UPDATED 2024-2025
Independent Assortment - Answer-The Mendelian principle stating that the alleles of
genes are sorted into gametes, sperm, and eggs independently from each other with an
equal and random chance of either allele going into each gamete
Dominant - Answer-An allele where it only takes one copy to show in the phenotype
Recessive - Answer-An allele where both copies are needed to show in the phenotype
Incomplete Dominance - Answer-Where in a heterozygote, the dominant allele of a
gene does not fully mask the effects of a recessive allele resulting in both alleles
partially expressed resulting in an intermediate phenotype
Codominance - Answer-When two different alleles are fully expressed at the same time
then the individual will still produce some or all of the functioning enzyme or protein that
an individual with two functioning copies would be able to produce - Answer-In a
heterozygote, if one allele for an enzyme or growth protein is non-functioning, but the
other allele is functioning...
random events and not intentional - Answer-Mutations are...
not random - Answer-The way that natural selection acts on a mutation is...
definitely show in his phenotype since it is not masked by another X chromosome. -
Answer-If a male carries a recessive allele for a sex-linked trait on his X chromosome,
then it will...
then it can be masked by the other X chromosome if the second allele is dominant -
Answer-If a female has a recessive trait for a sex-linked trait on one of her X
chromosomes...
one of the females X chromosomes - Answer-Any F1 male offspring must receive...
if his mother carries it - Answer-The F1 male offspring can only inherit a sex-linked trait
on the X chromosome...
, 1 X chromosome from her mother and 1 X chromosome from her father - Answer-A
female F1 offspring will receive...
Chi-Square Analysis - Answer-Determines whether there is a statistically significant
difference between the expected outcome of a test and the observed outcome
DNA Polymerase - Answer-An enzyme that copies DNA during replication and proof
reads and corrects any mutations that occur when a mistake is made
uncorrected and passed on to the DNA in the daughter cell - Answer-Rarely is a
mutation...
Point Mutation - Answer-When a single nucleotide is changed
Frame Shift Mutation - Answer-When a nucleotide is inserted into the DNA or deleted
from the DNA with the effect that all of the following codons are off by one nucleotide
Insertions and Deletions - Answer-What is usually fatal because the frame shift changes
the genetic code so drastically?
greater variation in a population - Answer-Mutations introduce...
more variation is being introduced into a population - Answer-A higher mutation rate
means that...
less variation is being introduced - Answer-A lower mutation rate means that...
Silent Mutation - Answer-When there is a mutation in a codon but the DNA codes for the
same amino acid so the correct protein is still made
Non-Silent Mutation - Answer-When the mutation changes which amino acid the codon
codes for, so a different amino acid is made and the protein is changed
less likely to be silent than mutations in the third base - Answer-Mutations in the first or
second base of a codon are...
still code for another polar amino acid, helping to minimize the phenotypic effects of the
mutation so the protein may not be severely damaged - Answer-Mutations in codons
meant to code for polar amino acids often...
silent because the same amino acid is often produced, even if the third base of the
codon is changed - Answer-Mutations in the third base of the codon are often...
False - Answer-Biodiversity on Earth will likely decrease in the near future.
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