Lab 8 DNA Flashcards
0
Q
The shape of DNA is called:
A
A double helix
1
Q
The individuals responsible for constructing the first model of DNA structure were:
A
Crick & Watson
2
Q
A nucleotide may consist of:
A
- deoxyribose sugar
- phosphate
- one of the four nitrogenous bases
3
Q
Which of the following is consistent with base pairing?
A
Adenine-thymine
4
Q
Two nitrogenous bases are held together by:
A
Hydrogen bonds
5
Q
Replication of DNA:
A
- is semiconservative
- takes place during S-stage of interphase
- results in two double helices from one
6
Q
Semiconservative replication:
A
- produces two new DNA molecules from the original parent strand.
- each DNA molecule will contain one-half the “old” parent strand and one-half “new” strand.
7
Q
If a codon is ACU, the amino acid it would code for is:
A
Threonine
8
Q
An anticodon is:
A
-is a three-based sequence of nucleotides on tRNA.
9
Q
In RNA, the nitrogenous base thymine is substituted with:
A
Uracil
