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Polyploidy: Quiz


Question 1: ________, for example, after millennia of hybridization and modification by humans, has strains that are diploid (two sets of chromosomes), tetraploid (four sets of chromosomes) with the common name of durum or macaroni wheat, and hexaploid (six sets of chromosomes) with the common name of bread wheat.
International wheat production statisticsWheatKamutSpelt

Question 2: Digyny is most commonly caused by either failure of one meiotic division during oogenesis leading to a diploid oocyte or failure to extrude one polar body from the ________.
Immature ovumFertilisationMeiosisOocyte

Question 3: There are also two distinct phenotypes in triploid placentas and fetuses that are dependent on the origin of the extra ________ set.

Question 4: triploid (three sets; 3x), for example seedless watermelons, common in the phylum ________[3]
Hypsibius dujardiniCnidariaOnychophoraTardigrade

Question 5: Tetraploid crops: durum or macaroni wheat, cotton, potato, ________, leek, tobacco, peanut, kinnow, Pelargonium

Question 6: For example, ________ is the hybrid of wheat (Triticum turgidum) and rye (Secale cereale).

Question 7: Polyploidy may occur due to abnormal cell division during metaphase I in ________.
Cell cycleMitosisMeiosisChromosome

Question 8: Diandry appears to predominate among early ________ while digyny predominates among triploidy that survives into the fetal period.
MiscarriageBreech birthEctopic pregnancyHydatidiform mole

Question 9: However, some tetraploid cells are commonly found in chromosome analysis at ________ and these are generally considered 'harmless'.
Prenatal diagnosisChorionic villus samplingObstetric ultrasonographyAmniocentesis

Question 10: Polyploidy occurs in cells and organisms when there are more than two paired (homologous) sets of ________.
KaryotypeAutosomeChromosomeChromosomal translocation


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