#Question id: 3769
#Section 3: Genetics, Cellular and Molecular Biology
Within a double-stranded DNA molecule, adenine forms hydrogen bonds with thymine, and cytosine forms hydrogen bonds with guanine. What is the significance of the structural arrangement?
#Question id: 14161
#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
#Question id: 3762
#Section 3: Genetics, Cellular and Molecular Biology
Why does a new DNA strand elongate only in the 5' to 3' direction during DNA replication?
#Question id: 17918
#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
#Question id: 4822
#Section 3: Genetics, Cellular and Molecular Biology
In a particular species of mammal black hair (B) is dominant to green hair (b) and red eyes (R) are dominant to white eyes (r). If a BbRr individual is mated with a bbrrindividual the expected phenotypic ratio of the offspring is 1 black-red : 1 black-white: 1 green-red : 1 green-white. However, when you mate these individuals you find that the phenotypic ratio of the offspring is 6 black-red :1 black-white : 1 green-red : 6 green-white. What could account for this difference?