Answer:
double helix
Explanation:
The double helix is a description of the molecular shape of a double-stranded DNA molecule. In 1953, Francis Crick and James Watson first described the molecular structure of DNA, which they called a "double helix," in the journal Nature.
Answer:
photolysis
Explanation:
it happens when the uv radiaiton of sunlight breaks apart the oxygen containg molecules.
Answer:
there is a 25% chance that the parents (both Hh) will have a child that does not have the disease
Explanation:
This would be the dichotomous key:
| H | h
H | HH | Hh
h | Hh | hh
Answer:
D.) crossing over causes alleles of genes to be switched between homologous chromosomes.
I believe this is because they lack a cell wall and have no central vacuole.
