#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?
#Question id: 5732
#Part-B Specialized Branches in Biotechnology
Consider a plant, such as maize, heterozygous for a paracentric inversion. The inversion is very small and a synapsed inversion loop does not occur in any of the cells. Which of the following statement is correct?
#Question id: 5733
#Part-B Specialized Branches in Biotechnology
In individuals heterozygous for a chromosome inversion, the homologous chromosomes form a loop in prophase I of meiosis.
Which of the following is effect of inversion?
A. A dicentric and an acentric chromosome in meiosis I as the chiasmata gets terminated when inversion includes centromere
B. Appearance of deletion and duplication in both the cross over products chromosomes when centromere outside of inversion region
C. All recombinant gamete are non-viable gametes when single crossing over within inverted region; irrespective to paracentric or pericentic inversion
D. Nonviable gametes are usually produced, resulting in a depression in observed recombination frequencies.
Which of the above statements are correct?
#Question id: 5735
#Part-B Specialized Branches in Biotechnology
Aneuploids may arise through nondisjunction, the failure of homologous chromosomes or sister chromatids to separate in meiosis. Following some statement are 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 other half normal haploid
C) Meiosis I non-disjunction leads to produce half of gametes n+1 other half n-1
D) Either meiosis I or meiosis II non-disjunction leads to produce all aneuploidy gamete