BIO 340 - Final Exam Study Guide - Questions with Verified Answers| Latest
Update Graded A+
Which of the children could be fathered by Dad 2? Multiple answers may be correct; choose all
that apply.
Emory
Aretha
Blue
Alexis Aretha
Blue
Alexis
Note: The following tables apply to Question 3 and Question 4.
You are working in a genetics lab and are tasked with determining genetic parentage for four
children with the following blood types:
Child - Blood Type
Blue - AB
Emory - O
Alexis - A
Aretha - B
The mother and potential fathers have the following known genotypes:
Mom - IAIB
Dad 1 - ii
Dad 2 - IBi
,Which of the children could be fathered by Dad 1? Multiple answers may be correct, choose all
that apply.
Alexis
Blue
Aretha
Emory Alexis
Aretha
The second locus of the example in colored tomatoes in question 1, is an example of:
incomplete dominance between two alleles.
Correct!a modifier gene . Correct! A mutation in a modifier gene affects the phenotype of
another gene. This is known as epistasis.
syntenic genes (in the same chromosome).
codominance between two genes. a modifier gene
Tomatoes can be found in many colors, based on the placement of a series of mutations in the
pathway, which result in color changes in the flesh of tomatoes. For example, the dominant
allele R codes for red pigment, causing plants to produce red tomatoes, whereas plants
homozygous for the recessive allele r bear yellow fruit. Tomatoes have a second locus in
combination with red pigment production. If the plant has one of the red genotypes and is G—
at the second locus, it will produce green fruits. The homozygous recessive genotype gg will be
non-functional. You cross two double heterozygous tomato plants (RrGg x RrGg).
What will be the expected proportion of red, green, and yellow tomato plants in this case?
8:6:4
9:6:1
3:12:1
Correct Answer 3:9:4 3:9:4
,What elements did Hershey and Chase use for its experiment to prove that DNA is the genetic
material? select all that apply
Correct! radioactive sulfur S35
Correct! T2 Bacteriophages
heavy nitrogen N15
Correct! radioactive phoshorous P32
Streptococcus pneumoniae bacteria radioactive sulfur S35
T2 Bacteriophages
Your chromosomes are located _______ and they are made of ___________ .
- floating in the cytoplasm, lipids
- inside the mitochondria, genes
- inside the nucleus, DNA
- in the cell membrane, protein inside the nucleus, DNA
A nucleotide is made of _______.
phosphate + nitrogen base
sugar + nitrogen base
sugar + phosphate + nitrogen base
sugar + phosphate sugar + phosphate + nitrogen base
A molecule of RNA (ribonucleic acid) contains the bases _______.
adenine, guanine, cytosine, and uracil
uracil, adenine, guanine, and adenosine
, adenine, guanine, thymine, and uracil
thymine, adenine, guanine, and cytosine adenine, guanine, cytosine, and uracil
Which of the following does cytosine pair with?
Adenine
Thymine
Uracil
Guanine Guanine
Which statement about analogies is correct?
They are derived by similar environmental constraints.
They are synonymous with homologous traits.
They are a form of mutation.
They occur only as errors. They are derived by similar environmental constraints.
What do scientists use to apply cladistics?
homologous traits
homoplasies
monophyletic groups
analogous traits homologous traits
What is true about organisms that are a part of the same clade?
They all share the same basic characteristics.
Update Graded A+
Which of the children could be fathered by Dad 2? Multiple answers may be correct; choose all
that apply.
Emory
Aretha
Blue
Alexis Aretha
Blue
Alexis
Note: The following tables apply to Question 3 and Question 4.
You are working in a genetics lab and are tasked with determining genetic parentage for four
children with the following blood types:
Child - Blood Type
Blue - AB
Emory - O
Alexis - A
Aretha - B
The mother and potential fathers have the following known genotypes:
Mom - IAIB
Dad 1 - ii
Dad 2 - IBi
,Which of the children could be fathered by Dad 1? Multiple answers may be correct, choose all
that apply.
Alexis
Blue
Aretha
Emory Alexis
Aretha
The second locus of the example in colored tomatoes in question 1, is an example of:
incomplete dominance between two alleles.
Correct!a modifier gene . Correct! A mutation in a modifier gene affects the phenotype of
another gene. This is known as epistasis.
syntenic genes (in the same chromosome).
codominance between two genes. a modifier gene
Tomatoes can be found in many colors, based on the placement of a series of mutations in the
pathway, which result in color changes in the flesh of tomatoes. For example, the dominant
allele R codes for red pigment, causing plants to produce red tomatoes, whereas plants
homozygous for the recessive allele r bear yellow fruit. Tomatoes have a second locus in
combination with red pigment production. If the plant has one of the red genotypes and is G—
at the second locus, it will produce green fruits. The homozygous recessive genotype gg will be
non-functional. You cross two double heterozygous tomato plants (RrGg x RrGg).
What will be the expected proportion of red, green, and yellow tomato plants in this case?
8:6:4
9:6:1
3:12:1
Correct Answer 3:9:4 3:9:4
,What elements did Hershey and Chase use for its experiment to prove that DNA is the genetic
material? select all that apply
Correct! radioactive sulfur S35
Correct! T2 Bacteriophages
heavy nitrogen N15
Correct! radioactive phoshorous P32
Streptococcus pneumoniae bacteria radioactive sulfur S35
T2 Bacteriophages
Your chromosomes are located _______ and they are made of ___________ .
- floating in the cytoplasm, lipids
- inside the mitochondria, genes
- inside the nucleus, DNA
- in the cell membrane, protein inside the nucleus, DNA
A nucleotide is made of _______.
phosphate + nitrogen base
sugar + nitrogen base
sugar + phosphate + nitrogen base
sugar + phosphate sugar + phosphate + nitrogen base
A molecule of RNA (ribonucleic acid) contains the bases _______.
adenine, guanine, cytosine, and uracil
uracil, adenine, guanine, and adenosine
, adenine, guanine, thymine, and uracil
thymine, adenine, guanine, and cytosine adenine, guanine, cytosine, and uracil
Which of the following does cytosine pair with?
Adenine
Thymine
Uracil
Guanine Guanine
Which statement about analogies is correct?
They are derived by similar environmental constraints.
They are synonymous with homologous traits.
They are a form of mutation.
They occur only as errors. They are derived by similar environmental constraints.
What do scientists use to apply cladistics?
homologous traits
homoplasies
monophyletic groups
analogous traits homologous traits
What is true about organisms that are a part of the same clade?
They all share the same basic characteristics.
