#Question id: 5706
#XL - R Botany
Species A has 2n = 16 chromosomes and species B has 2n = 14. How many chromosomes would be found in an allotriploid of these two species?
#Question id: 5708
#XL - R Botany
If non-disjunction occurs in meiosis I, which of the following scenario is most likely to occur?
#Question id: 5709
#XL - R Botany
What is probability of couple where male is karyotypically normal and the female in pericentric inversion in heterozygous condition produced child with disability if 50% chance of crossing over takes placed within pericentric inversion. (Note: Duplication and deletion in gamete will results in disability)
#Question id: 5716
#XL - R Botany
Which of the meiotic pairing possibilities in tetraploids and their consequence is correct?
A-chromosomes pair as bivalents, segregate normally producing diploid gametes.
B- Chromosomes pair as quadrivalent, segregates normally producing tetraploid gametes.
C-Chromosome pair as Trivalents form, segregation leads to nonfunctional aneuploid gametes
D- Chromosome pair as Trivalents form, segregation leads to producing diploid gametes
#Question id: 5718
#XL - R Botany
aneuploids may arise through nondisjunction, the failure of homologous chromosomes or sister chromatids to separate in meiosis. which of following the incorrect about nondisjuction ?
#Question id: 5720
#XL - R Botany
Which two of the following are the CORRECT statements ?
P. Nondisjunction in the parental meiosis is not essential to produce diploid organisms
Q. Nondisjunction in the parental meiosis is essential to produce aneuploid organisms
R. Nondisjunction in the parental meiosis is essential to produce hexaploid organism
S. Nondisjunction in the parental meiosis is essential to produce tetraploid organisms