9 Flashcards
1
Q
how are light reactions of photosynthesis similar to aerobic respiration
A
chemiosmosis using the proton-motive force occurs in both
2
Q
why don’t C4 plants photorespire
A
the CO2/O2 ratio in their chloroplasts is very high
3
Q
the equal distribution of daughter chromosomes to each of the two cells that result fro cell division is called
A
chromosome segregation
4
Q
euploids and aneiploids
A
- individuals with a normal set of chromosomes
- extra or missing chromosomes
5
Q
4 nitrogenous bases
A
- adenine
- guanine
- thymine
- cytosine
6
Q
Watson and Crick used several sources of info to decipher DNA structure 5 (chain, backbone,
A
- nucleotides join together to make a polynucleotide chain
- backbone of polynucleotide chain is a sugar phosphate backbone
- Polynucleotide chains have polarity with 5’ carbon at one end and 3’ carbon at the other
- Rosalind’s X-ray diffraction method
- % base content of DNA
7
Q
three models of DNA replication
A
- semiconservative replication- each double helix has one old strand and one new strand
- conservative replication- the parent and replicated pair up on their own
- dispersive replication - a mixture of the original and new strands
8
Q
Transformation
A
The conversion of a cell’s hereditary type by the uptake of DNA released by the breakdown of another cell
