Which of the following is incorrect regarding to α-helix

a) In the α helix, the first four NH groups and last four CO groups will normally lack backbone  hydrogen bonds.

b) the length of an amino acid in α-helix reduced almost 3 times than linear structure.

c) the frequent occurrence of Pro and Gly residues favour α-helix formation.

d) dihedral (ϕ and ψ) angle should be close to -57 and -47.

#Question id: 4805

#Section 3: Genetics, Cellular and Molecular Biology

What is maximum parental frequency for two genes if single cross over within two strands?

#Question id: 4806

#Section 3: Genetics, Cellular and Molecular Biology

Four incompletely link gene as cis configuration, Heterozygote ABCD/abcd produced a gamete with genotype AbCD is due to

#Question id: 4807

#Section 3: Genetics, Cellular and Molecular Biology

Three incompletely link marker gene was found. There is a marker A gene present in middle. Cross between aaBBcc X AAbbCC to produce heterozygous were allowed test cross, which of the following test cross offspring should be least frequent?

#Question id: 4808

#Section 3: Genetics, Cellular and Molecular Biology

When F1 female Drosophila of the genotype AaBbCc is test crossed, ( Gene A and B located at 10 map unit in transe configuration but gene C are independently assort for both gene. Which of the following test cross progeny that is that is more frequent?

#Question id: 4809

#Section 3: Genetics, Cellular and Molecular Biology

The upper most following figure above shows the locations of four genes on the genetic map of an organism; the lower figure shows the locations of the same four genes on a physical map derived from the nucleotide sequence of the DNA of that organism. The maps are not identical because

#Question id: 4810

#Section 3: Genetics, Cellular and Molecular Biology

In a haploid organism, the C and D loci are 8 m.u. apart. From a cross C d X c D, which of the following proportion following progeny classes: (a) C D; (b) c d; (c) C d