#Question id: 5716
#Part-B Specialized Branches in Biotechnology
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: 5720
#Part-B Specialized Branches in Biotechnology
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
#Question id: 5721
#Part-B Specialized Branches in Biotechnology
There is paracentric inversion heterozygote ABCDEFG/ABFEDCG involved in double recombination during meiosis I within inverted region result in
A. dicentric and an acentric chromosome in meiosis I as the chiasmata get terminated.
B. appearance of deletion in both the cross over product
C. all gamete are viable
D. nonviable gametes from crossover products.
Which of the above statements are correct?
#Question id: 5724
#Part-B Specialized Branches in Biotechnology
Species I is diploid (2n = 8) with chromosomes
AABBCCDD; related species II is diploid (2n = 8) with chromosomes MMNNOOPP. Individuals with the following sets of chromosomes represent what types of chromosome mutations?
A- AAABBCCDD B- AABBCCDDMNOP
C- AAABBCCDDD
#Question id: 5724
#Part-A Aptitude & General Biotechnology
Species I is diploid (2n = 8) with chromosomes
AABBCCDD; related species II is diploid (2n = 8) with chromosomes MMNNOOPP. Individuals with the following sets of chromosomes represent what types of chromosome mutations?
A- AAABBCCDD B- AABBCCDDMNOP
C- AAABBCCDDD
#Question id: 5730
#Part-B Specialized Branches in Biotechnology
In a family, father is homozygous dominant (AA) for a gene A and his wife is homozygous for its ressive allele (aa) showing albino phenotype. It was surprising that their child showed the albino phenotype. Which of the following phenomenon can explain the phenotype?