B, C, D
Meiosis is for sexual reproduction and is meant to create diversity. Answers A/e involve identical-ness, so they are wrong.
Answer: C) variable base sequences and are variable in the population.
Explanation:
Single nucleotide polymorphisms (SNPs) result from mutations point and correspond to the position where there is an alternation of nucleotides A, C, G, T at a minimum allele frequency of 1% in a given population. The SNPs may be present in both coding and non-coding regions of the genome. In coding regions, when resulting in an amino acid substitution, they are called synonyms and can be conservative or non-conservative depending on the characteristics of the amino acids involved in the exchange. In such cases, modifications may occur in structural and functional proteins.
The common cuckoo does not make a nest of its own, and they do not bring up their own young. Instead, the female lays her eggs in the nests of other birds. Each female cuckoo specialises in just one host species, and lays camouflaged eggs in that bird's nest.
Answer: The correct answer is -
B) The presence of at least one carbon-based sugar.
Explanation:
RNA (ribonucleic acid) and DNA (deoxyribonucleic acid) are the two types of nucleic acids that are composed of nucleotide (monomer of nucleic acid).
A nucleotide has three parts, which are pentose sugar (5 carbon sugar), nitrogenous base, and phosphate group.
Starch is a complex carbohydrate as it is composed of several units of simple sugar such as glucose.
Thus, the presence of at least one carbon-based sugar is common in DNA, RNA, and Starch.
