Darwin's proposed mechanism for evolution is natural selection. Natural selection allows species to respond to their surroundings through time, or to become progressively excellently-suited. Natural selection is environmentally based and involves established heritable variation within a population.
They lead to changes in species over time:
- Darwin suggested species will evolve over time, new species originate from pre-existing species, and all species share a common ancestor with each other.
- In this framework each organism has its own special set of heritable i.e genetic variations from the common ancestor that have slowly developed over very longer periods of time.
- Parroted branching activities that isolate new species from a common ancestor create a multi-level tree that connects all living organisms.
11 and 12 seem to be right :) For 13, only organisms which are homozygotic for a certain gene (aa) express a recessive phenotype.
14. This dna exchange between the homologous chromosomes is called crossing-over.
15. geneticly linked or coupled, the phenomenon is known as genetic linkage
16. and 17. also seem all right :)
B. Increased exposure to UV light increases the risk of mutation occurring.
Answer: (NEW) TAT CTA TGT GTG TCA TAC TCT CTA TAT CTC TCT ATA TCC
(COMPLAMENTARY) ATA GAT ACA CAC AGT ATG ACA GAT ATA GAG AGA TAT
Explanation: From what I gathered, they just want you to come up with a new sequence on your own and write down its complementary sequence. That's what I did. Hope it helps.
Dry mouth or a decrease in urine output possibly ?
