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.
C4 plants are more efficient photosynthesizers than c3 plants due to lower rate of photorespiration.
Answer:
Osteoporosis
Explanation:
Osteoporosis occurs when the bones become porous i.e less dense and weak. This can led to fracture of the bones because of the brittle nature of the bones. Deficiency in vitamin D as well as deficiency in calcium can result to osteoporosis in the elderly.
In the case of Marie, she is lactose intolerance, meaning she is most likely not to be consuming milk which contains a high quantity of calcium needed for bone development. So also, it was said she prefers staying indoors than going outside, meaning she has no access to sunlight which contains vitamin D. These factors could jointly influence the appearance of osteoporosis.
The first and last sounds most reasonable, but I will go with the last one.
The wing of a bat is homologous to the flipper of a whale. Homologous structures are structures that have a similar ancestries and common traits but maybe not have the same function in an organism. For example the arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale are homologous structures.
