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: 5354

#Unit 8. Inheritance Biology

Eye color gene link with X chromosome, If red eye color gene is dominant over white eye color gene. Which of the following genetic cross and their respective offspring is not correlated?

#Question id: 5353

#Unit 8. Inheritance Biology

Which of following is not a mode of inheritance, but female parents (I-1) carry only normal allele?

A. X link recessive              b. Autosomal recessive

c. Autosomal dominant      d. X- link dominant

#Question id: 5352

#Unit 8. Inheritance Biology

Marriage occurs between individuals III-3 and III-6, what is the probability couple; son would be affected with the trait?

#Question id: 5351

#Unit 8. Inheritance Biology

Consider the accompanying pedigree of a rare autosomal recessive disease, PKU. (Assume individual coming from outside that is homozygous for normal allele) What is the probability of child showing trait of A and B individuals?

#Question id: 5350

#Unit 8. Inheritance Biology

Which of the following most probable mode of genetic disorder?

#Question id: 5349

#Unit 8. Inheritance Biology

The following is the inheritance pattern of a trait under observation:

(i) The trait often follow cris cross inheritance 

(iii) Unaffected father born to affected daughter

The trait is likely to be