Answer: Just did the lesson on this, the answer is C.
Explanation:An allele is one of the possible forms of a gene. Most genes have two alleles, a dominant allele and a recessive allele. If an organism is heterozygous for that trait, or possesses one of each allele, then the dominant trait is expressed. ... So a gene is a particular region of your DNA that controls a specific trait.
Answer:
A. The rock was made from more than one type of material
C. Sediments and other matter were deposited in layers before lithification
A) Crossing over is the mechanism of genetic variation that results from the exchange of gene segments between non-sister chomatids.
Answer: The cell is eukaryotic because it contains mitochondria
Explanation: Because I said so but really this is the answer
Answer:
D
Explanation:
Its d I think tell me if it's wrong If it is I'm sorry
