Chapter 11 Flashcards
Two strands of DNA in a double helix are c _ _ _ _ _ _ _ _ _ _ y to each other, which means the bases can pair with each other.
Complimentary
A pairs with _ and G pairs with _.
A pairs with T and G pairs with C.
DNA p _ _ _ _ _ _ _ _ e is an enzyme that helps chemical reactions that link monomers of DNA into DNA polymer.
DNA Polymerase.
Is the following true?
During DNA replication, the Leading Strand is synthesized continuously in long segments.
The Lagging Strand is synthesized by shorter segments and then the short segments are combined by DNA ligase.
Yes, it is all true.
Where does mutations occur?
DNA.
What is a point mutation?
A single nucleotide base is changed, inserted or deleted.
What is a frameshift mutation?
A DNA sequence is inserted or deleted and it changes how the whole thing is read.
What is the function of CRISPR? List some pros and cons.
It allows researchers to alter genes and how they function. It can cure some genetic diseases and improve agriculture- but there are ethical concerns with genetically altering people.
True or false: During DNA replication, two strands of DNA separate from each other, each one functions as a template to produce a complementary strand. This results in two new identical DNA double helix, both are identical to the parent DNA. Each of the two new DNA has one strand from the old DNA, one strand newly synthesized.
True.
