#Question id: 4740
#Part-A Aptitude & General Biotechnology
Following metabolic pathway for synthesis of anthocyanin product ? Which of the following cross produced all purple phenotype in their progeny ?
#Question id: 4741
#Part-A Aptitude & General Biotechnology
The F2 progeny from a particular cross exhibit a modified dihybrid ratio of 9 : 7 (instead of 9 : 3 : 3 : 1). What phenotypic ratio would be expected from a testcross of the F1?
#Question id: 4742
#Part-A Aptitude & General Biotechnology
In birds, sex is determined by a ZW chromosome scheme. Males are ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is sometimes present on the Z chromosome in pigeons. What would be the sex ratio in the offspring of a cross between a male that is heterozygous for the lethal allele and a normal female?
#Question id: 4742
#Part-B Specialized Branches in Biotechnology
In birds, sex is determined by a ZW chromosome scheme. Males are ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is sometimes present on the Z chromosome in pigeons. What would be the sex ratio in the offspring of a cross between a male that is heterozygous for the lethal allele and a normal female?
#Question id: 4743
#Part-A Aptitude & General Biotechnology
Ectrodactyly is an autosomal dominant trait that causes missing middle fingers (lobster claw malformation). A grandfather and grandson both have ectrodactyly, but the intervening father has normal hands by x-ray. Which of the following terms applies to this family?
#Question id: 4743
#Part-B Specialized Branches in Biotechnology
Ectrodactyly is an autosomal dominant trait that causes missing middle fingers (lobster claw malformation). A grandfather and grandson both have ectrodactyly, but the intervening father has normal hands by x-ray. Which of the following terms applies to this family?