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Biology Practice test 2 Exam Questions and AnswersBiology Practice test 2 Exam Questions a, Exams of Advanced Education

Biology Practice test 2 Exam Questions and Answers Biology Practice test 2 Exam Questions and Answers

Typology: Exams

2024/2025

Available from 06/05/2025

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Which of the following can help reduce the risk of a late stage breast
cancer diagnosis?
1 / 1 pts
Question 1
Biology Practice test 2 Exam Questions and
Answers
Due Mar 31 at 11:59pm Points 46 Questions 46
Available Mar 30 at 12:01am - Apr 2 at 11:59pm 4 days Time Limit 60 Minutes
Allowed Attempts 2
Instructions
Practice Exam 2
This is a practice exam. It does not count for course points, but it will allow you to practice and see where
you might need to study a little more. You will be able to see your score and answers immediately, and
you can take a 2nd attempt if you wish. If you have questions about the practice exam, please get them
answered before the actual exam opens (we can't answer questions about the course material while the
real exam is open). There are 46 questions and you have an hour to complete the practice exam once
you open it, just like on the actual exam.
NOTE: Some questions include images. The images may
not show up on a mobile device. Please use Chrome or Firefox on a desktop or laptop computer
to ensure that you can view the images.
Attempt History
Attempt Time Score
LATEST Attempt 1
58 minutes 37 out of 46
Score for this attempt: 37 out of 46
Submitted Apr 2 at 8:42am
This attempt took 58 minutes.
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Download Biology Practice test 2 Exam Questions and AnswersBiology Practice test 2 Exam Questions a and more Exams Advanced Education in PDF only on Docsity!

Which of the following can help reduce the risk of a late stage breast

cancer diagnosis?

1 / 1 pts

Question 1

Biology Practice test 2 Exam Questions and

Answers

Due Mar 31 at 11:59pm Points 46 Questions 46

Available Mar 30 at 12:01am - Apr 2 at 11:59pm 4 days Time Limit 60 Minutes

Allowed Attempts 2

Instructions

Practice Exam 2

This is a practice exam. It does not count for course points, but it will allow you to practice and see where

you might need to study a little more. You will be able to see your score and answers immediately, and

you can take a 2nd attempt if you wish. If you have questions about the practice exam, please get them

answered before the actual exam opens (we can't answer questions about the course material while the

real exam is open). There are 46 questions and you have an hour to complete the practice exam once

you open it, just like on the actual exam. NOTE: Some questions include images. The images may

not show up on a mobile device. Please use Chrome or Firefox on a desktop or laptop computer

to ensure that you can view the images.

Attempt History

Attempt Time Score

LATEST Attempt 1 58 minutes 37 out of 46

Score for this attempt: 37 out of 46

Submitted Apr 2 at 8:42am

This attempt took 58 minutes.

Question 2

1 / 1 pts

What amino acid is encoded by the mRNA codon UAU?

Coorrrecctt!

Tyr

Asn

Coorrrecctt!

Regular mammograms

Regular Pap tests

The HPV vaccine

Avoiding UV light

C

o

or r

re c

ctt!

100% (all 13)

At least 25 % (at least 3 out of 13)

~55% (7 out of 13)

~85% (11 out of13)

How many of the CODIS STRs need to match between a suspect and

crime scene DNA evidence in order to be sure that the suspect left the

evidence?

1 / 1 pts

Question 6

1 / 1 pts

Question 7

Coorrrecctt!

DNA and protein

DNA and carbohydrates

DNA and lipids

Protein and carbohydrates

What two types of molecules make up chromosomes?

1 / 1 pts

Question 5

Coorrrecctt!

Ashkenazi Jewish heritage

Having the first period at age 15

Having a sister-in-law diagnosed with breast cancer at age 35

Being 27 years old

Which of the following would be most concerning about breast cancer risk?

1 / 1 pts

Question 8

The Pfizer vaccine is a , which is into a protein.

gene; transcribed

1 / 1 pts

Question 9

A woman has been diagnosed with breast cancer at age 37. Her first

period was at age 14. Her mother was diagnosed with breast cancer at age

42. Is this woman's cancer more likely to be inherited or sporadic?

Equally likely to be inherited or sporadic

Coorrrecctt!

Inherited

Sporadic

Coorrrecctt!

Zygote; 23

Zygote; 46

Gamete; 46

Ovum; 23

A fertilized egg is known as a(n) and has chromosomes.

1 / 1 pts

Question 13

What is the mRNA corresponding to the DNA sequence GCC ATA?

1 / 1 pts

Question 14

Coorrrecctt!

Separates DNA fragments based on their size/length

Identifies the uniquely identifying sequences in a person’s DNA

Makes many copies of (amplifies) specific DNA sequences

Degrades DNA

What does PCR do?

1 / 1 pts

Question 12

C

o

or r

re c

ctt!

Silk glands

Mammary glands

Liver cells

Every cell

In a spider, where is the spidrion gene expressed?

1 / 1 pts

Question 15

Which allele of CFTR encodes a protein that makes it to the membrane but

does not function properly?

WT

orrect Answer

G551D

o

ou A n

ns w

we r

reed

Phe508del

0 / 1 pts

Question 16

Coorrrecctt!

CGG UAU

GCC AUA

GCC ATA

CGG TAT

Coorrrecctt!

It depends on whether the person is biologically male or female

How many chromosomes are in the nucleus of a skin cell?

1 / 1 pts

Question 20

How many breast cancer alleles are detected in the 23andme breast

cancer test?

1 / 1 pts

Question 21

Coorrrecctt!

DNA codons

DNA coding sequences

mRNA codons

Amino acids

What is “read” by ribosomes during translation?

1 / 1 pts

Question 19

orrect Answe

o

ou A n

ns w

we r

reed

A mouse regulatory sequence and the jellyfish GFP regulatory sequence

A mouse coding sequence and the jellyfish GFP coding sequence

A mouse coding sequence and the jellyfish GFP regulatory sequence

A mouse regulatory sequence and the jellyfish GFP coding sequence

r

To express jellyfish green fluorescent protein (GFP) in mice you need a

transgene with

0 / 1 pts

Question 22

The vast majority of all cancer is and occurs.

C

o

or r

re c

ctt!

Sporadic; at older ages

Inherited; at younger ages

1 / 1 pts

Question 23

Coorrrecctt!

orrect Answe

oou Annswwerreed

heterozygous

homozygous dominant

heterozygous recessive

homozygous recessive

r

In order for someone to have the phenotype of a recessive trait, they must

have a genotype.

0 / 1 pts

Question 27

A person with a dominant genetic disease has a

genotype.

0 / 1 pts

Question 28

Coorrrecctt!

Far more so than DNA profiling

Not very, far less than DNA profiling

About the same as DNA profiling

How credible is bite mark analysis?

1 / 1 pts

Question 26

Coorrrecctt!

It just progresses through the cell cycle anyway

It dies by apoptosis

It will permanently stall and enter a state of “stasis”

If a normal cell cannot fix a problem (like DNA damage), what happens?

1 / 1 pts

Question 29

oou Annswwerered

o

ou A n

ns w

we r

reed

homozygous dominant

heterozygous

homozygous recessive or homozygous dominant

orrect Answer

homozygous dominant or heterozygous

A carrier for CF marries someone who is homozygous dominant. What is

the probability that their first child will have CF?

0 / 1 pts

Question 30

Coorrrecctt!

No

It depends on whether it has spread throughout the body

Yes

Can a risk for sporadic breast cancer be detected with a 23andme breast

cancer test?

1 / 1 pts

Question 34

An STR is

C

o

or r

re c

ctt!

A short tandem repeat

1 / 1 pts

Question 35

ATRyn is a recombinant form of that is produced in

C

o

or r

re c

ctt!

antithrombin; goats

antithrombin; yeast

coronavirus spike protein; yeast

insulin; goats

Coorrrecctt!

G-C

T-A

C-G

A-C

Which of the following is NOT a base pair in DNA?

1 / 1 pts

Question 36

A woman is “negative” for the 23andme breast cancer test. Does this mean

that she will NOT develop cancer?

Coorrrecctt!

No, she could have inherited other alleles, or accumulate mutations over

her lifetime

Yes, she is free of cancer risk

No, she could still accumulate mutations over her lifetime

1 / 1 pts

Question 37

A DNA sequence that is unique for every person on the planet

A way to amplify DNA for forensics

A DNA sequence that encodes a key enzyme in cellular metabolism

C

o

or r

re c

ctt!

An inherited form of cancer

A tumor involving blood cells

A sequence that controls when, where how much of a protein is made

A version of a gene with a different nucleotide sequence

What is an allele?

1 / 1 pts

Question 41

On gel electrophoresis, which fragments run the furthest from the “start”?

The largest/longest

1 / 1 pts

Question 42

If a person has a G551D CFTR allele, what treatment is possible?

Lumacaftor

Unfortunately, there is not yet a treatment for people with this allele

Coorrrecctt!

Ivacaftor

Atryn

C

o

or r

re c

ctt!

What % of breast cancer is sporadic?

1 / 1 pts

Question 43

Which of the following would NOT be a source of DNA for forensic

analysis?

Semen

Epithelial cells shed from skin

Epithelial cells in saliva

C

o

or r

re c

ctt!

Red blood cells

1 / 1 pts

Question 44

The ones from the paternal chromosomes

C

o

or r

re c

ctt!

The smallest/shortest

The ones from the maternal chromosomes