Answer:
We know that Dna is contained in the nucleus that were the dna is located.So the answer to your question is nucleic acids.
Explanation:
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True
Lysosomes are
organelles enclosed at the membrane, they contain series of enzymes that digest
or breakdown all types of biological polymers such as lipids, protein, nucleic
acid and carbohydrates. Also, lysosomes function as the digestive system of the
cell by degrading materials taken up from outside the cell.
Explained in greater detail, each gene resides at a specific locus (location on a chromosome) in two copies, one copy of the gene inherited from each parent. The copies, however, are not necessarily the same. When the copies of a gene differ from each other, they are known as alleles.
Answer:
B) There is an increase in the number of giraffes with long necks in areas of Africa where low-growing trees have died
Explanation:
The directional selection is one of the ways of the natural selection in which the natural selection selects or favours the most extreme trait of the species and the extreme trait show higher fitness than the normal or average trait.
In the given question, the case of Giraffe necks shows directional selection as the normal length of the neck is not favoured by the environment but the extreme trait that is long neck is favoured by the environment and the selection shifted to that level.
Thus, Option-B is the correct answer.
