Biod210 Module 3 Genetics Exam/ Portage Learning, Exams of Nursing

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Biod210 Module 3 Genetics Exam/ Portage Learning 2024/

Module 3 Exam - Requires Respondus

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DueNoduedate Points 100 Questions 25

Availableafter Dec 16, 2021 at 8:28pm TimeLimit 60Minutes

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AttemptHistory

Attempt Time Score

LATEST Attempt 1 60 minutes 90outof 100

Score for this quiz: 90 out of 100

Submitted Nov 4, 2021 at 11:09am

This attempt took 60 minutes.

C Coorrrreecctt!!

False

True

TrueorFalse:Chromosomesareinacondensedformthrough

mostofthecellcycle.

2 / 2 pts

Question 1

CCoorrrreecctt!!

C Coorrrreecctt!!

C Coorrrreecctt!!

C Coorrrreecctt!!

C Coorrrreecctt!!

Jelly-likesubstancew

Cytosol

Studdedwithribosom

EndoplasmicReticulum

(ER)

ContainsalloftheDN

Nucleus

Dissolvesduringmito

NuclearMembrane

Protectsthecellfrom

PlasmaMembrane

Matchthefollowingeachofthefollowingtermswiththecorrect

description.

10/ 10 pts

Question 2

Whichofthefollowingiscorrect?

Sisterchromatidsarenotheldtogether.

C Coorrrreecctt!!

Centriolesareresponsiblefortheformationofspindlefibers.

2 / 2 pts

Question 3

Inmetaphase,centromeresdispersethroughoutthenucleus.

Allarecorrect.

r

r r

r e

e c

c t

t A

A

n

n s

s w

w e

e

u uAAnnsswweerreedd

Interphase

Telophase

Anaphase

Prophase

r

r

Atwhichcellcyclephasedoesthenuclearmembranebreak

down?

0 / 2 pts

Question 4

ThegeneticflowofmaterialbetweenorganismsisNOT

dependentonwhichofthesecriteria?

Replicationofthematerial

C

C

o

o r

r r

r e

e c

c t

t !

!

Independentassortmentofthegenes

2 / 2 pts

Question 5

Storageoftheinformation

VariationofDNAthroughmutation

1. histone

2. positively

3. negatively

YourAnswer:

histones

positive

negative

Fillintheblanks:

DNAis condensed within the nucleus (cellular compartment) by

coiling around (1) proteins. Modification of these

(2) charged proteins alters them to become either neutral

or negatively charged. Thus, the interaction with

(3) chargedDNAisinterrupted,andtheinteractions

loosen.

6 / 6 pts

Question 6

CCoorrrreecctt!!

C Coorrrreecctt!!

C Coorrrreecctt!!

C Coorrrreecctt!!

C Coorrrreecctt!!

Telophase

Anaphase

Metaphase

Prophase

S-phase

Interphasemarkstheperiodofthecellcyclejustbeforeactivecell

division.Labeltherestofthecellcycleinorder,from1-5.

10/ 10 pts

Question 7

Whichofthefollowingistrueaboutanaphase?

Itmarksthelongestphaseofthecellcycle.

C

C

o

o r

r r

r e

e c

c t

t !

!

Chromatidsundergodisjunctiontotraveltooppositepoles.

2 / 2 pts

Question 8

Active DNA replication ensures that duplication is complete before

the cycle ends.

Cytokinesis helps the cell to divide into two parts containing equal

cytoplasm.

C Coorrrreecctt!!

Degrade

Intertwine

Formacovalentbond

Separate

Achiasmaisapointduringmeiosisatwhichthenon-homologous

sisterchromatids:

2 / 2 pts

Question 9

Whichofthefollowingstatementsiscorrect?

2 / 2 pts

Question 10

TheY chromosomeismuchlargerthantheXchromosome.

TheXandYchromosomessharenohomology.

TheXchromosomeisthedrivingdeterminantforsexofan

offspring.

C Coorrrreecctt!!

Incorrect segregation of X and Y chromosomes (for instance, a

female with XXX or X genotype) can produce viable offspring,

albeitusuallywithsomeproblems.

C Coorrrreecctt!!

False

True

Trueorfalse:Linkedgenesarepartofthesamechromosome.

2 / 2 pts

Question 11

4 / 4 pts

Question 12

Consider genes A, B, and C, which are located on a chromosome

in that order. If genes A and B cross over 30% of the time, and

genes B and C cross over 30% of the time, what is the probability

of a double crossover between A B and C?

YourAnswer:

9%

(0.3)*(0.3)=0.09,9%chanceofthiscrossover

Fillintheblank:

Determination of sex in humans is located on the (1)

chromosome, specifically on the (2) gene.

YourAnswer:

X

female

0 / 4 pts

Question 13

1. Y

2. SRY

1. Klinefeltersyndrome

2. male

Your Answer:

klinefelter syndrome

male

Fillintheblank:

ThesexdisorderthatexhibitsanXXYphenotypeisknownas

(1). This disorder is found on the (2) sex

chromosome.

4 / 4 pts

Question 14

C

C

o

o r

r r

r e

e c

c t

t !

!

C

C

o

o r

r r

r e

e c

c t

t !

!

C Coorrrreecctt!!

C Coorrrreecctt!!

8 / 8 pts

Question 15

Answer4:

True

Answer3:

True

Answer2:

True

Answer1:

False

IndicatewhethereachofthefollowingstatementsisTrueorFalse.

1.G0isanactivelydividingcellcyclephase.False

2.CellsenterG0whentheenvironmentalconditionsarenotideal

forsurvival.True

3.CellsinG0donotundergoactivereplication.True

4.Whenconditionsbecomenormal,cellsmaygobackintothe

cellcycle.True

10/ 10 pts

Question 16

Matcheachofthefollowingtermswiththecorrectdescription.

C

C

o

o r

r r

r e

e c

c t

t !

!

Kinetochore

Flankthecentromere;

C

C

o

o r

r r

r e

e c

c t

t !

!

Spindlefibers

Madeoftubulin,provi

C Coorrrreecctt!!

Centrioles

Cytoplasmicbodieso

C Coorrrreecctt!!

Metaphaseplate

Areawherecentromer

C Coorrrreecctt!!

Cyclins

Bindandactivatekina

Matcheachofthefollowingtermswiththecorrectdescription.

C Coorrrreecctt!!

Kinases

Phosphorylateprotein

C Coorrrreecctt!!

Cohesin

Proteincomplexform

C Coorrrreecctt!!

Histones

HoldDNAtightlywrap

8 / 8 pts

Question 17

C

C

o

o r

r r

r e

e c

c t

t !

!

Shugoshin

Protectsthecentrome

C

C

o

o r

r r

r e

e c

c t

t !

!

Homunculus

Oocyte

Zygote

Zooynote

Afertilizedeggthatistheresultoffusionoftwogametesiscalled

a.

2 / 2 pts

Question 18

C Coorrrreecctt!!

False

True

TrueorFalse:Theprimarymalegameteisthesperm,andthe

primaryfemalegameteistheoocyte.

4 / 4 pts

Question 19

C

C

o

o r

r r

r e

e c

c t

t !

!

Noneoftheabovestatementsaretrue.

Onlybacterialgenescanbesuccessfullymappedsincethe

genomeissmall.

Enoughoffspringshouldbeproducedtogivearepresentative

sample.

Thegenotypesmustbehomozygous.

Whichofthefollowingcriteriamustbemetinordertosuccessfully

mapgenes?

2 / 2 pts

Question 20

C

C

o

o r

r r

r e

e c

c t

t !

!

False

True

TrueorFalse:Atfertilization,thephenotypeofamaleorfemaleis

immediatelyevident.

2 / 2 pts

Question 21

CCoorrrreecctt!!

Mitosis

G

G

G

Duringwhichphaseofthecellcycledocellsbecomequiescent?

2 / 2 pts

Question 22

C

C

o

o r

r r

r e

e c

c t

t !

!

Homologous

Genderphilial

Mating

Heteromorphic

TheXandYsexchromosomesareknownas

chromosomes.

2 / 2 pts

Question 23

Question 24

0 / 4 pts

Why is modification of histone proteins critically important to DNA

transcription?

YourAnswer:

so the dna can be transcibed into rna and it has tobe done

properly in order to make more proteins

Modifications of the histone proteins allow for them to

either wrap tightly around DNA or to loosen their

gripon DNA. This is very important for transcription

because when histones loosen their grip on DNA, it

allows access to the transcriptional machinery so that

DNA can be transcribed. Conversely, when thehistones

are tightly wrapped with the DNA,transcription is shut

off because the machinery cannot access the DNA

within the space.

C

C

o

o r

r r

r e

e c

c t

t !

!

False

True

Trueorfalse:TheeggsofafemaleundergomeiosisIbeforeshe

isevenborn,buttheyundergomeiosisIIafterfertilizationoccurs.

2 / 2 pts

Question 25

• QuizScore: 90 outof