AnswersFL-2000310-Biology 1 Sem 1 - FlexConsequences of DNA Technology

Consequences of DNA Technology — Cumulative exam Answers

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1
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Which food contains mostly polysaccharides?

A
cake
B
sugar
C
berries
D
pasta
2
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The diagram shows a simple lipid.What type of lipid is shown?

Question illustration
A
saturated
B
unsaturated
C
phospholipid
D
triglyceride
3

What do all cellular activities in living organisms use as a source of energy?

A
ATP
B
lactic acid
C
pyruvic acid
D
carbon dioxide
4

Which recent discovery led to a new understanding of how genetic mutations increase the risk of cancer?

A
double helix structure of DNA
B
BRCA1 and BRCA2 genes
C
nucleic acid monomers
D
formation of tumor suppressor proteins
5

Which blood type could be given as a transfusion for patient with AB blood when the RH factor is unknown?

A
O+
B
A+
C
AB+
D
AB–
6

What type of lipid is estrogen?

A
steroid
B
phospholipid
C
triglyceride
D
wax
7

Which organelle can be compared to a security guard who decides whom may enter a building and whom may not?

A
cell membrane
B
cytoplasm
C
endoplasmic reticulum
D
mitochondrion
8

Some flowering plants appear to have offspring that have traits that are intermediate between those of the parents. Which type of dominance is exhibited by the offspring?

A
complete dominance
B
blended dominance
C
codominance
D
incomplete dominance
9

Which statement best describes the process of chemiosmosis and the direct result of its occurrence?

A
Hydrogen ions flow from the thylakoid down a concentration gradient through ATP synthase channels into the stroma. ADP is converted to ATP.
B
Hydrogen ions flow from the thylakoid down a concentration gradient through ATP synthase channels into the stroma. ATP is converted to ADP.
C
Hydrogen ions flow from the stroma down a concentration gradient through ATP synthase channels into the thylakoid. ADP is converted to ATP.
D
Hydrogen ions flow from the thylakoid against a concentration gradient through ATP synthase channels into the stroma. ADP is converted to ATP.
10

Which best describes biotechnology?

A
the process of analyzing DNA samples to identify individuals involved in criminal activities
B
DNA made by connecting fragments of DNA with desired traits from different DNA sources
C
the field of biology that uses genetic engineering to produce crops, pharmaceuticals, and enzymes for use in industry and manufacturing
D
the process of cutting DNA into fragments and inserting the fragments with a desired gene into another organism
11

Rapid reproduction is an advantage of which process?

A
gamete formation
B
sexual reproduction
C
asexual reproduction
D
chromosome duplication
12

What is the end result of the eukaryotic cell cycle?

A
no parent cells and two daughter cells
B
one parent cell and two daughter cells
C
two parent cells and one daughter cell
D
one parent cell and one daughter cell
13

Who would be the best people to study to help assess how genetics and the environment influence the expression of traits?

A
identical twins that were adopted and raised by different families
B
identical twins that were raised together by their mother and father
C
a brother and sister that were adopted and raised by different families
D
a brother and sister that were raised together by their mother and father
14

Which scenario breaks the law of segregation?

A
a gamete contains the father’s allele
B
the gametes produced each have 1 allele after meiosis II
C
a gamete produced has 2 of the same alleles after meiosis II
D
the gamete fertilized has the dominant trait
15

Which is an application of DNA technology in medicine?

A
mapping human genes for manipulation
B
determining specific traits that a baby will have before its conception
C
producing disease resistant humans
D
determining hereditary diseases in individuals and families
16

Francois Jacob and Jacques Monod studied Escherichia coli (E. coli) bacteria by using lab experimentation. What revision to their initial hypothesis did they come up with?

A
The lac operon is repressed by allolactose.
B
E. coli are unable to process lactose sugar.
C
All E. coli operons are always turned on.
D
Two operons regulate gene control in E. coli.
17

The pedigree traces red-green color blindness. Which family members have red-green color blindness?

Question illustration
A
Sam, Tim, Bella, and Joshua
B
Lisa and Monica
C
Ben, Jenny, Mike, Carol, Katie, and Chris
D
Sam, Joshua, and Tim
18

A Venn diagram can be used to compare and contrast nucleic acids.Which characteristic would be correctly found in B?

Question illustration
A
contain ribose
B
consist of two strands
C
made of nucleotides
D
have an R group
19

Which base is found only in DNA?

A
adenine
B
guanine
C
cytosine
D
thymine
20

Jun is at risk for heart disease so he is watching his cholesterol levels. He refers to the table below to choose what is best for his health.Comparison Chart of Fats Food (14 g)Saturated Fat (g)Monounsaturated Fat (g)Polyunsaturated Fat (g)Butter7.93.70.5Cream cheese3.01.50.2Margarine1.65.43.4Peanut butter1.44.02.6Which snack is the healthiest option for Jun, based on the data in the table?

A
bagel with butter
B
bagel with cream cheese
C
bagel with margarine
D
bagel with peanut butter

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