typically protista must not contain skull.
<span>Attached to each sugar ring is a </span>nucleotide base<span>, one of the four bases </span>Adenine<span> (A), </span>Guanine<span> (G), </span>Cytosine<span> (C), and </span>Thymine<span> (T). The first two (A, G) are examples of a </span>purine<span> which contains a six atom ring and five atom ring sharing two atoms. The second two (C, T) are examples of a </span>pyrimidine<span> which is composed of a single six atom ring. A </span>base pair<span> is one of the pairs A-T or C-G. Notice that each base pair consists of a purine and a pyrimidine. The nucleotides in a base pair are </span>complementary<span> which means their shape allows them to bond together with </span>hydrogen bonds<span>. The A-T pair forms two hydrogen bonds. The C-G pair forms three. The hydrogen bonding between complementary bases holds the two strands of DNA together. Hydrogen bonds are not chemical bonds. They can be easily disrupted. This permits the DNA strands to separate for </span>transcription<span> (copying DNA to RNA) and </span>replication<span> (copying DNA to DNA). In our simple model, the entire base pair structure is represented by the single blue rod. Various more elaborate models can be constructed to represent base pairs, including the one above which shows individual atoms and bonds.</span>
None of their children would have the disease, but they would all be carriers. Because the X-linked disease is recessive which mean that it is not the main base so if you use punett squares and would get that all of the genomes are Xx, Xx, Xx, Xx which show you that there is a 0% chance of them two people having a child with that disease but there children could have a child with that disease if they had a mate that had that recessive gene.
Answer:
A. Crocodile
Explanation:
This is because we can see that when the Crocodiles are at <1% of their total lifespan, they have the least amount of remaining survivors out of 100.