Biology 111 -Final Exam Questions With Correct Answers.pdf

Biology 111 - ./ ./


Final Exam Questions With Correct Answers
./ ./ ./ ./ ./




A./cell./starts./with./40./chromosomes./(20./homologous./pairs)../After./DNA./replication./how./many./chrom
osomes./does./the./cell./have?

20./(10./homologous./pairs)

40./(20./homologous./pairs)

80./(40./homologous./pairs)

40./but./no./homologous./pairs./of./chromosomes—each./is./unique

80./but./no./homologous./pairs./of./chromosomes—each./is./unique./-
./correct./answer./ 40./(20./homologous./pairs)



Which./process./describes./cell./division./in./prokaryotic./organisms?

Mitosis

Meiosis

Binary./fission

Cytokinesis

Telekinesis./-./correct./answer./ Binary./fission



What./is./the./term./used./to./describe./about./150./nucleotides./of./DNA./wrapped./around./a./core./of./histo
ne./proteins?

30-nm./fiber

Chromosome

Nucleosome

Centrosome

Centromere./-./correct./answer./ Nucleosome



Meiotic./cell./division./plays./a./key./role./in./which./biological./processes?

Reproduction./of./bacteria

,Growth./and./development./of./eukaryotic./organisms

Wound./healing

Responses./to./environmental./changes

Sexual./reproduction./-./correct./answer./ sexual./reproduction



During./the./G1./phase./of./the./cell./cycle,./most./of./the./DNA./would./be./in./what./state./of./compaction?

Loose./(double./helix)

Nucleosome

Centrosome

Chromosome

30-nm./fiber./-./correct./answer./ 30-nm./fiber



During./telophase./of./mitosis,./how./many./DNA./double./helices./make./up./a./single./chromosome?

One

Two

Four

Eight

Just./two./but./they./are./substantially./different./from./one./another./-./correct./answer./ one



Which./of./the./following./is./true./regarding./chromosomes./during./different./forms./of./cell./division?

The./pairing./of./homologous./chromosomes./occurs./in./prophase./of./mitosis./and./not./in./meiosis./

Homologous./chromosomes./aren't./present./in./the./same./cell./at./the./same./time./during./mitosis

The./pairing./of./homologous./chromosomes./occurs./in./prophase./II./of./meiosis./and./not./in./mitosis

Homologous./chromosomes./are./more./similar./to./each./other./than./sister./chromatids./during./all./phases
./of./mitosis


None./of./the./above./are./true./-./correct./answer./ None./of./the./above./are./true



Catenins./are./proteins./that./link./one./cell./to./another./into./unified./tissues../Loss./of./function./mutations./
to./catenins./cause./loss./of./contact./inhibition../Normally./functioning./catenins./are./best./categorized./as./
what./type./of./protein?

,Histones

Proto-oncogenes

Tumor./suppressor./genes

oncogenes./

Cyclin./-./correct./answer./ Tumor./supressor./genes



During./which./phase./of./the./cell./cycle./does./the./nuclear./envelope./reassemble?

S./phase

G1

Telophase

Prophase

G0./-./correct./answer./ Telophase



Disruption./of./the./signaling./of./growth./factors./will./directly./affect./which./of./the./cell./cycle./check./point
s?

G1

G2

Anaphase

Telophase./checkpoint

None./of./the./checkpoints./-./correct./answer./ G1



Which./of./the./following./conditions./is./required./to./proceed./from./metaphase./to./anaphase?

Cdc./20./is./inactive

Securin./is./active

APC./is./inactive

Cohesion./is./active./(intact)

Separase./is./active./-./correct./answer./ Separase./is./active



Which./two./processes./are./most./similar./compared./to./each./other?

, Binary./fission./and./meiosis./II

Meiosis./II./and./mitosis

Meiosis./I./and./mitosis

Mitosis./and./binary./fission

Meiosis./I./and./binary./fission./-./correct./answer./ Meiosis./II./and./mitosis



A./cell./starts./with./40./chromosomes./(20./homologous./pairs)../After./meiosis./I./what./is./the./arrangement
./of./chromosomes./in./each./cell?


20./chromosomes;./each./with./two./identical./chromatids

20./chromosomes;./each./with./one./chromatid

20./chromosomes;./each./with./two./nonidentical./chromatids

40./chromosomes;./each./with./one./chromatid

40./chromosomes;./each./with./two./nonidentical./chromatids./-
./correct./answer./ 20./chromosomes;./each./with./two./nonidentical./chromatids



Flower./position./is./a./trait./inherited./in./true./Mendelian./fashion;./A./=./axial,./a./=./terminal../What./is./the./
genotype./of./a./pea./plant./with./axial./flowers./if./a./test./cross./with./that./pea./plant./yields./offspring,./all./o
f./which./have./axial./flowers?

AA

Aa

aa

any./of./the./above

none./of./the./above./-./correct./answer./ AA



At./what./point./of./cell./division./are./the./nuclei./of./cells./undergoing./meiosis./first./considered./haploid./n
uclei?

After./meiosis./II./and./cytokinesis

After./DNA./replication

After./anaphase./of./meiosis./II

After./telophase./of./meiosis./I