Exam 7: Dna Structure and Function

In some species, the sex of the future individual is determined by environmental conditions and not by sex chromosomes. Which species determines its sex by temperature?

The addition of methyl groups to DNA by chemicals in tobacco can cause DNA to _____.

Rosalind Franklin's research contribution was essential in _____.

Short, single strands of nucleotides that serve as attachment points for DNA polymerase are called _____.

Repair enzymes _____.

What is the spontaneous process by which the base pairing occurs between two strands of DNA?

During SCNT, the DNA is extracted from the egg using a(n) _____.

DNA varies from species to species in _____.

How many chromosomes are present in human somatic cells?

In a given strand of DNA, complementary bases are connected to each other by _____.

What was the first mammal cloned from an adult-differentiated cell?

The majority of DNA in a cell that has undergone differentiation is _____.

When two adjacent bases in the same strand of DNA dimerize (form a covalent bond between them), what happens to the DNA?

The structure of a DNA molecule is analogous to a _____.

The most common source of DNA mutation is _____; however, these mistakes are typically corrected.

In DNA replication, a primer is _____.

The characteristic "X" shape of chromosomes is _____.

How does X-ray crystallography provide details about molecular structure?