Answer:
A gene is a section of a double-stranded molecule known as DNA. This molecule is found within the nucleus of the cell, contained in threadlike structures called chromatin. The two strands form a double helix linked by a series of paired bases. The base adenine is always linked to thymine and the base cytosine is always linked to guanine.
The correct answer is A) Generates new combinations of alleles upon which selection can act.
Explanation:
In biology, there are two main kinds of reproduction: sexual and asexual. Asexual reproduction occurs when there is only a parent involve and this divides, splits or similar to form new cells or organisms that are genetically identical to the parent. On the other hand, in sexual reproduction, there are two parents involved, usually from opposite sexes and the alleles of both are combined in the offspring. The main advantage or benefit of sexual reproduction is that it involves the combination of alleles which means genetic variation, this makes the population able to adapt and evolve as selection acts and also makes a population less vulnerable to diseases. Thus, a benefit of sexual reproduction is that "Generates new combinations of alleles upon which selection can act".
Answer:
a strand of DNA with a nucleotide sequence of AGTCATGA will have ... When two DNA copies are formed, they have an identical sequence of ... As you have learned, the DNA polymerase enzyme can add nucleotides
Explanation:
i am sorry if this is wrong
A substance used, or acted on, by another process or substance such as a reactant in an enzyme catalysed reaction.
Answer:
I think its 1 cells all come from pre existing cells. have a nice day hope this isnt too late :)
Explanation:
im taking the test too
