Quiz1

Name__________________________________ Date___________________

MULTIPLECHOICE.Choosetheonealternativethatbestcompletesthestatementoranswersthequestion.Each

questionisworth2.5points.(Total=12.5points)

1) Whichofthestatementsbelowwouldbetrue?

A) Thelategastrulacellsaremorecompetenttorespondtotheinductivesignalsfromthedorsal

blastoporelip(theSpemann-Mangoldorganizer)thantheearlygastrulacells,becausethe

lategastrulacellsarelessdeterminedthantheearlygastrulacells

B) Theneurulacellsaremorecompetenttorespondtotheinductivesignalsfromthedorsal

blastoporelip(theSpemann-Mangoldorganizer)thanthegastrulacells,becausetheneurula

cellsaremoredeterminedthanthegastrulacells

C) Thelategastrulacellsarelesscompetenttorespondtotheinductivesignalsfromthedorsal

blastoporelip(theSpemann-Mangoldorganizer)thantheearlygastrulacells,becausethe

lategastrulacellsaremoredeterminedthantheearlygastrulacells

D) Theneurulacellsarelesscompetenttorespondtotheinductivesignalsfromthedorsal

blastoporelip(theSpemann-Mangoldorganizer)thanthegastrulacells,becausetheneurula

cellsarelessdeterminedthanthegastrulacells

2) Whichofthestatementsbelowwouldbetrue?

A) Duringoogenesisinvertebrates,thedevelopingoocyteundergoesprimaryarrestnearthe

endofprophaseI

B) Duringoogenesisinvertebrates,thedevelopingoocyteundergoesprimaryarrestnearthe

endofprophaseII

C) Duringoogenesisinvertebrates,thedevelopingoocyteundergoesprimaryarrestat

metaphaseI

D) Duringoogenesisinvertebrates,thedevelopingoocyteundergoesprimaryarrestat

metaphaseII

3) Whichofthestatementsbelowwouldbetrue?

A) Genomicequivalencestatesthatthehistonemarksofallsomaticcellswithinagivenanimal

areidentical

B) GenomicequivalencestatesthattheDNAmethylationmarksofallsomaticcellswithina

givenanimalareidentical

C) GenomicequivalencestatesthatthegenomicDNAsequenceofallsomaticcellswithina

givenanimalareidentical

D) Twooftheabove

E) Alloftheabove

4) Whichofthestatementsbelowwouldillustrateinstructiveinduction?

A) TheFrenchFlagModelofpositionalinformation

B) Cellsgeneratedifferentresponsestodifferentlevelsoftheinductivesignal

C) Alloftheabove

D) Noneoftheabove

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Quiz 1

Name__________________________________ Date___________________

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Each question is worth 2.5 points. (Total = 12.5 points)

Which of the statements below would be true?

A) The late gastrula cells are more competent to respond to the inductive signals from the dorsal blastopore lip (the Spemann-Mangold organizer) than the early gastrula cells, because the late gastrula cells are less determined than the early gastrula cells

B) The neurula cells are more competent to respond to the inductive signals from the dorsal blastopore lip (the Spemann-Mangold organizer) than the gastrula cells, because the neurula cells are more determined than the gastrula cells

C) The late gastrula cells are less competent to respond to the inductive signals from the dorsal blastopore lip (the Spemann-Mangold organizer) than the early gastrula cells, because the late gastrula cells are more determined than the early gastrula cells

D) The neurula cells are less competent to respond to the inductive signals from the dorsal blastopore lip (the Spemann-Mangold organizer) than the gastrula cells, because the neurula cells are less determined than the gastrula cells

Which of the statements below would be true? A) During oogenesis in vertebrates, the developing oocyte undergoes primary arrest near the end of prophase I B) During oogenesis in vertebrates, the developing oocyte undergoes primary arrest near the end of prophase II C) During oogenesis in vertebrates, the developing oocyte undergoes primary arrest at metaphase I D) During oogenesis in vertebrates, the developing oocyte undergoes primary arrest at metaphase II

Which of the statements below would be true? A) Genomic equivalence states that the histone marks of all somatic cells within a given animal are identical B) Genomic equivalence states that the DNA methylation marks of all somatic cells within a given animal are identical C) Genomic equivalence states that the genomic DNA sequence of all somatic cells within a given animal are identical D) Two of the above E) All of the above

Which of the statements below would illustrate instructive induction? A) The French Flag Model of positional information B) Cells generate different responses to different levels of the inductive signal C) All of the above D) None of the above

Gene A and gene B act antagonistic to each other, as part of a linear pathway. Which of the following experimental data would show that gene A is epistatic to gene B? A) An animal carrying a loss-of-function mutation in gene A and a gain-of-function mutation in gene B has the same phenotype as an animal that only carries a gain-of-function mutation in gene B B) An animal carrying a loss-of-function mutation in gene A and a gain-of-function mutation in gene B has the same phenotype as an animal that only carries a loss - of-function mutation in gene A C) An animal carrying a loss-of-function mutation in gene A and a gain-of-function mutation in gene B has the same phenotype as an animal that only carries a loss - of-function mutation in gene B D) Two of the above E) All of the above

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