Bio 1124 Unit 3 Exam Review Questions
And All Revised Correct Answers.
A woman who has type B blood and a man who has type A blood could have children with
which of the following blood types? - Answer A, B, AB and O
A cross between heterozygotes for a single trait will lead to a phenotype ratio of 1:2:1. How
many phenotypes are there if incomplete dominance is occurring? - Answer three
An individual's total set of alleles for a particular trait is called his/her.... - Answer genotype
Which of these is commonly used to predict the results of simple genetic crosses?
a. gene square cross
b. calculator
c. pungent square - Answer c. pungent square
If a particular gene in a population has multiple alleles, how many alleles can a diploid individual
inherit?
a. one
b. two
c. three
d. as many alleles that are present in the population - Answer b. two
In order to predict the outcome of mutually exclusive events, this rule should be used....
a. product
b. division
c. addition
d. multiplication - Answer c. addition
Which trait is not expressed in the heterozygote?
a. recessive
b. dominant
, a. chromatin
b. nucleus
c. genome
d. phenotype - Answer c. genome
A trait that has multiple genes contributing to its expression is known as which of the following?
a. monogenic trait
b. polygenic trait
c. sex-linked trait - Answer b. polygenic trait
Chargaff's experiments showed that the amount of adenine in a sample was always the same as
the amount of...
a. uracil
b. cytosine
c. adenine
d. thymine
e. guanine - Answer d. thymine
Many thousands of nucleotides can be joined together to form a polymer of nucleic acids via
this type of bond...
a. nucleodiester
b. ionic
c. phosphodiester
d. phosphate - Answer c. phosphodiester
The polarity of a DNA or RNA strands refers to the orientation of which of the following?
a. purines to pyrimidines
b. two DNA strands to each other
c. sugar molecules in a DNA strand
d. phosphate group to hydroxyl group - Answer d. phosphate group to hydroxyl group
DNA's phosphodiester _____ is composed of sugars and phosphates - Answer backbone
And All Revised Correct Answers.
A woman who has type B blood and a man who has type A blood could have children with
which of the following blood types? - Answer A, B, AB and O
A cross between heterozygotes for a single trait will lead to a phenotype ratio of 1:2:1. How
many phenotypes are there if incomplete dominance is occurring? - Answer three
An individual's total set of alleles for a particular trait is called his/her.... - Answer genotype
Which of these is commonly used to predict the results of simple genetic crosses?
a. gene square cross
b. calculator
c. pungent square - Answer c. pungent square
If a particular gene in a population has multiple alleles, how many alleles can a diploid individual
inherit?
a. one
b. two
c. three
d. as many alleles that are present in the population - Answer b. two
In order to predict the outcome of mutually exclusive events, this rule should be used....
a. product
b. division
c. addition
d. multiplication - Answer c. addition
Which trait is not expressed in the heterozygote?
a. recessive
b. dominant
, a. chromatin
b. nucleus
c. genome
d. phenotype - Answer c. genome
A trait that has multiple genes contributing to its expression is known as which of the following?
a. monogenic trait
b. polygenic trait
c. sex-linked trait - Answer b. polygenic trait
Chargaff's experiments showed that the amount of adenine in a sample was always the same as
the amount of...
a. uracil
b. cytosine
c. adenine
d. thymine
e. guanine - Answer d. thymine
Many thousands of nucleotides can be joined together to form a polymer of nucleic acids via
this type of bond...
a. nucleodiester
b. ionic
c. phosphodiester
d. phosphate - Answer c. phosphodiester
The polarity of a DNA or RNA strands refers to the orientation of which of the following?
a. purines to pyrimidines
b. two DNA strands to each other
c. sugar molecules in a DNA strand
d. phosphate group to hydroxyl group - Answer d. phosphate group to hydroxyl group
DNA's phosphodiester _____ is composed of sugars and phosphates - Answer backbone
