Which of the following statements about hominin evolution is correct?
As hominins have evolved- a. sexual dimorphism was significantly reduced
Hominins are described as any species of early humans which are more closely related to humans than chimpanzees, including modern humans themselves. An example of hominin species is - Australopithecus afarensis
They undergone genetic mutation that influenced their fur color.
Mutations result either from accidents during the normal chemical transactions of DNA, often during replication, or from exposure to high-energy electromagnetic radiation (e.g., ultraviolet light or X-rays) or particle radiation or to highly reactive chemicals in the environment. Mutation can be of 4 types Germline mutations occur in gametes. Somatic mutations occur in other body cells. Chromosomal alterations are mutations that change chromosome structure. Point mutations change a single nucleotide. Frameshift mutations are additions or deletions of nucleotides that cause a shift in the reading frame. Factor that influenced mutation are the size of the gene, its base composition, its position in the genome, and whether or not it is being actively transcribed influence its mutation rate.
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Answer:
The given statement is true.
Explanation:
A channel protein refers to a protein, which permits the conduction of particular substances like small molecules or ions through the cell membrane. They perform this task either through the process of active transport or facilitated diffusion on the basis of the concentration gradient or due to the variation in the concentration of components outside and within the cell membrane.
Answer:
given below
Explanation:
Genetic engineering is the process of cutting DNA into fragments and inserting the fragments with a desired gene into another organism of the same or different species
Protects brain and spinal cord from trauma, as well as supplies nutrients to nervous system tissue. It also removes waste from cerebral metabolism.
