A female cat in heat urinates more often and in many places. Male cats congregate near the urine deposits and fight with each other.  Which of  the  following  would  be  an  ultimate  cause  of  the  male  cats? response  to  the  female?  s urinating behaviour?

#Question id: 29103

#Unit 8. Inheritance Biology

Which of the following is a correct prediction about Anaphase?

#Question id: 29104

#Unit 8. Inheritance Biology

#Question id: 29105

#Unit 8. Inheritance Biology

If two set of chromosome is considered in G1 phase, then at which phase of the cell cycle, the no of chromosome as well as no of DNA cell both are doubled?

#Question id: 29106

#Unit 8. Inheritance Biology

For the proper segregation of the chromosome at anaphase-I chiasma formation take place. At which stage of the cell cycle crossing over takes place?

#Question id: 29107

#Unit 8. Inheritance Biology

Aneuploids may arise through nondisjunction, the failure of homologous chromosomes or sister chromatids to separate in meiosis. which of the following statements is correct?

a) Meiosis I non-disjunction leads to produce all gamete become aneuploidy

b) Meiosis II non-disjunction leads to produce half of gametes n+1 and n-1 while other half normal haploid

c) Either meiosis I or meiosis II non-disjunction leads to produce all aneuploidy gamete

d) Meiosis II non-disjunction leads to produce all gamete become n+1 and n-1

#Question id: 29108

#Unit 8. Inheritance Biology

If 3 genes are unlinked which is X, Y and Z, the probability of progeny being X+ X-Y+Y- Z- Z- from a cross between  X+X+Y+Y-Z+Z- and X-X-Y+Y+Z-Z- parents will be____