Answer:
Explanation:As previously stated, DNA is a macromolecule that's made up of individual subunits called nucleotides. Each nucleotide has three parts:
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A deoxyribose sugar.
A phosphate group.
A nitrogenous base.
DNA nucleotides can contain one of four nitrogenous bases. These bases are adenine (A), thymine (T), guanine (G) and cytosine (C).
These nucleotides come together to form long chains known as DNA strands. Two complementary DNA strands bond to each other in what looks like a ladder before winding into the double helix form.
The two strands are held together through hydrogen bonds that form between the nitrogenous bases. Adenine (A) forms bonds with thymine (T) while cytosine (C) forms bonds with guanine (G); A only ever pairs with T, and C only ever pairs with G.
Complementary Definition (Biology)
In biology, specifically in terms of genetics and DNA, complementary means that the polynucleotide strand paired with the second polynucleotide strand has a nitrogenous base sequence that is the reverse complement, or the pair, of the other strand.
Answer:
I think is it cytoplasm. I hope its correct :)
Explanation:
B cells make antibodies. That's just what they do.
2 is D. The flu virus constantly mutates, so a new vaccine every year is developed.
Antibodies attach to cells with the corresponding antigen. anti-anti, that's how i remember it.
You're welcome!
D. is the correct answer. Hope this helps! :)
Answer:
E. bu cv+
Explanation:
Given, that bu+ and cv+ are dominant alleles whereas bu and cv are recessive alleles of the respective genes. In repulsion, the chromosome has one dominant and one recessive allele of the linked genes. According to it, if the German cockroach has bu+bu cv+cv genotype, it should be present in bu+cv/bucv+ arrangement. Thus the parental gametes from this genotype would be bu+cv and bucv+. Recombinant gametes will be bucv and bu+cv+.
Since parental gametes are produced more in number than recombinant gametes in linkage, bu+cv and bucv+ will be the most common gametes. Hence, out of the given options bucv+ set of genes will be present in the most common gametes produced by this cockroach.