Question

1. part of a dna strand is represented in the diagram above. in order for dna to replicate, the strand must separate at which of the following locations? a between every phosphate - sugar pair b between the eight sugar - base pairs c between the four nitrogenous base pairs d between any two chemical bonds

bird traits

gene	trait
g	yellow feathers (recessive)
l	long beak (dominant)
l	short beak (recessive)

ggll (male) × ggll (female)

1. what trait will most likely be observed in all offspring of the above set of parents? a green feathers b yellow feathers c long beak d short beak

Explanation:

Step1: Recall DNA replication

DNA replication occurs by separating the two - strand helix at the hydrogen - bonded nitrogenous base pairs. The phosphate - sugar backbone remains intact. So for question 16, the strand must separate between the nitrogenous base pairs.

Step2: Analyze bird traits inheritance

For question 17, the male has genotype GGLl and the female has genotype Ggll. For the feather color gene, the male has GG and the female has Gg. All offspring will inherit at least one dominant G allele for green feathers from the male, so green feathers will most likely be observed in all offspring.

Answer:

1. C. Between the four nitrogenous base pairs
2. A. Green feathers