A rock, a car, something nonliving.
Answer: Natural selection occurs when one allele (or combination of alleles of different genes) makes an organism more or less fit, that is, able to survive and reproduce in a given environment. If an allele reduces fitness, its frequency will tend to drop from one generation to the next.
Explanation:
Answer:
If there is a mutation in the p53 protein then this leads to abnormal cell growth and cell death or apoptosis does not occur.
Explanation:
p53 is a tumor supressor protein.p53 is encoded by TP53 gene.The protein is named so because the protein has a molecular weight of 53 kilo Dalton and this protein helps in programmed cell death or apoptosis.
The mutation in p53 result in the abnormal cell growth due to accumulation of mutated p53 protein, an important sign of development of cancer.
ARCHAEA AND BACTERIA are the simplest organisms without nucleus.
These two organisms are prokaryotes, which means that their cells is not differentiated and they do no have cell membrane bounded organelles. They are both microscopic.
A fatty acid has a hydrophobic tail this means that it does not like to come into contact with water, like when oil wont mix with water and satys separate as a layer or blobs under the surface.