#Question id: 3631
#Unit 8. Inheritance Biology
Six different mutations 1 to 6, from the following results of functional allelism tests whereby the mutants were crossed with each other, determine location of mutant gene.
#Question id: 3632
#Unit 8. Inheritance Biology
geneticist is working with a new bacteriophage called phage Y3 that infects E. coli. He has isolated eight mutant phages that fail to produce plaques when grown on E. coli strain K. To determine whether these mutations occur at the same functional gene, he simultaneously infects E. coli K cells with paired combinations of the mutants and looks to see whether plaques are formed. He obtains the following results. (A plussign means that plaques were formed on E. coli K; a minussign means that no plaques were formed on E. coli K.)
How many cistron belong to these mutation?
#Question id: 3633
#Unit 8. Inheritance Biology
In a maternity ward, four babies become accidentally mixed up. The ABO types of the three babies are known to be A, B, and AB. The ABO types of the four sets of parents that are clamed are determined.
(A) AB X O (B) A X O, (C) A X AB, (D) B X O.
Following some statement is given
A. A blood group baby must be child of Parent B
B. B blood group baby must be child of Parent A
C. AB blood group baby must be child of Parent A
D. AB blood group baby must be child of Parent C
Which of the following above statement is correct?
#Question id: 3634
#Unit 8. Inheritance Biology
In the pearl millet plant, color is determined by three alleles at a single locus: Rp1 (red), Rp2 (purple), and Rp3 (green). Red is dominant over purple and green, and purple is dominant over green (Rp1 >Rp2 >Rp3). Which of the following parental cross would produce ½ had red, ¼ purple, ¼ green?
#Question id: 3635
#Unit 8. Inheritance Biology
In the multiple allele series that determines coat color in rabbits, c+codes for agouti, cch for chinchilla and ch for Himalayan. Dominance is in the order c+>cch>ch. In a cross of c+/cch X cch/ch, what proportion of progeny will be chinchilla?
#Question id: 3636
#Unit 8. Inheritance Biology
A man with type A blood group marries a woman with type A blood group. Their first child has type O blood. What is the genotype of the Man, proportion of his gametes are expected to contain the IA allele, and probability that their next child will have type A blood respectively: