#Question id: 3329
#Unit 11. Evolution and Behavior
The following genotypes of one locus in population are given - Genotype ( Number)
AA (120) AB ( 30) BB (50) CC (300)
AC (400) BC (100)
Which of the following is the correct frequency of C allele and A allele respectively?
#Question id: 4905
#Unit 8. Inheritance Biology
Which of the correct feature of genetic material effect?
#Question id: 720
#Unit 1. Molecules and their Interaction Relevant to Biology
How would a homopolymer of alanine be more likely to form an alpha helix in water or in a hydrophobic medium?
#Question id: 973
#Unit 1. Molecules and their Interaction Relevant to Biology
What is the source of the atoms 5 and 7 during de novo biosynthesis of purines?
#Question id: 4955
#Unit 11. Evolution and Behavior
If relatively small carbonaceous chondrites from space were a significant source of Earthʹs original amino acids, then which two of these would have been most important in permitting their organic materials to survive impact with Earth?
I. Carbonaceous chondrites must contain no D-amino acids.
II. Earthʹs early atmosphere must have had little free oxygen.
III. The chondrites must have arrived on Earth before 4.2 billion years ago.
IV. Earthʹs early atmosphere must have been dense enough to dramatically slow the chondrites before they impacted.
V. The chondrites must have impacted land, rather than a large body of water.