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.
Bio-geographic isolation affects the random changes that take place within gene pools
The bio-geographic isolation of the species takes place when the geographical barrier work as a distinguishing agent. It takes place when the group of animals, plants and other creatures are not allowed to mate with each other.
The mixing of there genes within the same species is separated by the geographical barrier.
The barrier allows the mating of the species in a different way as compared to the previous one.
A food chain is a succession of organisms that eat other organisms and are being eaten by other organisms occupying different levels called the trophic levels. The first trophic level is occupied by the producers which include the plants, the second level includes the herbivores, the third level and subsequent levels represent the carnivores. The plants are called the producers since they can prepare their own food and the other organisms dependening on them are called the consumers.
According to the Ten percent law of energy transfer, only ten percent of the energy is transferred to each trophic level and the remaining is lost during the transfer. If the producers have 3000 calories of energy, the primary consumers obtain 300 calories from them. The secondary producers and tertiary consumers obtain 30 calories and 3 calories only.
Answer:
a malfunction of endoplasmic retuculum
Explanation:
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It’s called a solar system because solar means “relating to or determined by the sun” and system means “a set of things working together as parts of a mechanism or an interconnecting network” and the solar system is a whole bunch of planets and other things that are related to the sun and working together.