Biol 2030 Genetics Midterm | 2026/2027 | Correct Answers |
Questions With Complete Solutions
acentric Correct Answers is a segment of a chromosome that
lacks a centromere.
aneuploidy Correct Answers and extra or missing chromosome
Continuous variation Correct Answers hows a Bell-shaped
curve (continuous series of overlapping phenotypes
Cystic Fibrosis Correct Answers Is recessive meaning that in
some cases the loss of function is greater than in other. And
depending on that loss of fxn on the gene, can greatly change the
symptoms
Cytogenetics Correct Answers focuses on chromosome
variations
deletion Correct Answers Loss of chromosomal material •
Large-scale deletions are lethal
(act like monosomies)
dicentric Correct Answers is a segment of chromosome that
has two centromeres
Discontinuous Variation Correct Answers shows distinct
phenotypes
, Discontinuous vs Continous Correct Answers patterns used to
describe how phenotypes of a given trait are grouped into
classes or categories
dispermy Correct Answers 2 sperm +1 egg
DNA Repair Systems Correct Answers Cells have enzyme
systems to repair damaged DNA
• There are several categories of repair systems and they
function during different parts of the cell cycle
• The repair systems are under genetic control and they too can
undergo mutation
• Many cancers have mutations in repair enzymes BRCA1 and
2, HNPCC
duplication Correct Answers The larger the region increases
the likelihood that there will be an associated phenotype
• act like trisomy (3 copies of genes),
-lethal for many regions
PART OF A CHROMOSOME PRESENTED TWICE
Effect of radiation Correct Answers Thymine dimers are made
when UV light crosslinks adjacent bases
Euchromatin contains more____ Correct Answers protein
encoding genes
Expansion of trinucleotide repeats causes____ Correct Answers
Mutation
Questions With Complete Solutions
acentric Correct Answers is a segment of a chromosome that
lacks a centromere.
aneuploidy Correct Answers and extra or missing chromosome
Continuous variation Correct Answers hows a Bell-shaped
curve (continuous series of overlapping phenotypes
Cystic Fibrosis Correct Answers Is recessive meaning that in
some cases the loss of function is greater than in other. And
depending on that loss of fxn on the gene, can greatly change the
symptoms
Cytogenetics Correct Answers focuses on chromosome
variations
deletion Correct Answers Loss of chromosomal material •
Large-scale deletions are lethal
(act like monosomies)
dicentric Correct Answers is a segment of chromosome that
has two centromeres
Discontinuous Variation Correct Answers shows distinct
phenotypes
, Discontinuous vs Continous Correct Answers patterns used to
describe how phenotypes of a given trait are grouped into
classes or categories
dispermy Correct Answers 2 sperm +1 egg
DNA Repair Systems Correct Answers Cells have enzyme
systems to repair damaged DNA
• There are several categories of repair systems and they
function during different parts of the cell cycle
• The repair systems are under genetic control and they too can
undergo mutation
• Many cancers have mutations in repair enzymes BRCA1 and
2, HNPCC
duplication Correct Answers The larger the region increases
the likelihood that there will be an associated phenotype
• act like trisomy (3 copies of genes),
-lethal for many regions
PART OF A CHROMOSOME PRESENTED TWICE
Effect of radiation Correct Answers Thymine dimers are made
when UV light crosslinks adjacent bases
Euchromatin contains more____ Correct Answers protein
encoding genes
Expansion of trinucleotide repeats causes____ Correct Answers
Mutation
