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Bio 101 Module 5 Latest Update Actual Exam Questions and 100% Verified Correct Answers Guaranteed A+
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Bio 101 Module 5 Latest Update Actual Exam Questions and 100% Verified Correct Answers Guaranteed A+

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  • August 5, 2024
  • 11
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • bio 101 module 5 latest update actual ex

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Bio 101 Module 5 Latest Update 2024-2025
Actual Exam Questions and 100% Verified
Correct Answers Guaranteed A+

A mutant allele can cause genetic disease because - CORRECT ANSWER: a mutant
allele is a blotched recipe for a protein; a protein gets made but it is not the right one
and so it can't perform its function an an enzyme properly


A mutation in which of the following genes is worse? - CORRECT ANSWER: regulatory
gene


A mutation in which the following can be passed on to offspring - CORRECT ANSWER:
a germ cell


A small drop of blood is found at a crime scene. There is not enough DNA in the blood
to do an analysis. How can the amount of DNA be increased? - CORRECT ANSWER:
PCR


Although the Y chromosome in humans has few genes, there is one gene that it does
have that is very important. What is it? - CORRECT ANSWER: the male-determining
factor gene


Are most mutations dominant or recessive? - CORRECT ANSWER: recessive


Assume the gene for flower color (possible alleles: R,r) is on the SAME chromosome as
the gene for plant height (possible alleles: T,t). A TTRR plant is crossed with a ttrr plant
to produce a TtRr plant. What kinds of gametes will this TtRr plant make if there is NO
CROSSING OVER when it does meiosis? - CORRECT ANSWER: If we were to look at
the chromosomes for the TtRr plant we would find that one chromosome had TR and
the homologous chromosome tr. If there is no crossing over then chromosomes remain
intact when they go into gametes. So some gametes will get the chromosome with TR
and some will get the chromosome with tr.

, At the cellular level, a gene as instructions for making - CORRECT ANSWER: a
particular protein


At the DNA level, what is the simplest mutation that can occur and how has the DNA
changed? - CORRECT ANSWER: point mutation, one nucleotide or base is changed to
another


Chances of a women having a child with Down syndrome is highest for women.. -
CORRECT ANSWER: 40-50 years old.


Chromosomes other than sex chromosomes are called - CORRECT ANSWER:
autosomes


DNA from 2 individuals can be compared by cutting their DNA into fragments, then
sorting the fragments by size. The process that sorts the fragments is called -
CORRECT ANSWER: electrophoresis


DNA polymerase is responsible for - CORRECT ANSWER: constructing a new strand
during DNA replication


DNA replication occurs before the process of _______ in somatic cells and the process
of ________ in germ cells. - CORRECT ANSWER: mitosis, meiosis


Down syndrome is caused by what chromosome problem? - CORRECT ANSWER: an
extra copy of a chromosome


For an autosomal dominant, genetic disease, if a normal man marries an affected
woman, what proportion of their children would be expected to have the disease? -
CORRECT ANSWER: 1/2


For an autosomal recessive genetic disease how many copies of the bad allele do you
have to have to express the disease? - CORRECT ANSWER: two

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