Explanation:
During sexual reproduction, two sex cells fuse to create a fertilized cell with a complete set of chromosomes. ... Result is 2 identical cells with 46 chromosomes.
1930-1950 hope this helps
Answer:
B
Explanation:
This involves selectively breeding two or more populations of a species or subspecies with desirable traits that are wanted by the humans. The offspring of the populations will bear the desired traits from the population. Breeding can be done over generations. An example is the breeding a cattle population that is resistant to drought and another that produces more milk. The filial generations will bear both traits.
Answer:
"The separation of twins conjoined at the head was a medical miricle , but the The story of the surgery that made Ben Carson famous — and itsIf things go badly it would be terrible for the young doctor's career,”
EnJoY ThE AnSwEr!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The R group varies, and it is the carbon-phosphate backbone