Answer:
Cancer cells such as Hela cells escape to normal cell cycle by mutations that lead to the misexpression and/or overexpression of regulatory molecules (e.g., cyclins and cyclin-dependent kinases) and faulty checkpoint control of the cell cycle
Explanation:
The term cell cycle refers to the mechanism of DNA replication and cell division, which involves a series of sequential steps. The control of the cell cycle depends on 1-cyclins and cyclin-dependent kinases (CDKs) that regulate the cell cycle by a cascade of protein phosphorylations and 2- a group of checkpoint controls that monitor the completion of critical cellular events. HeLa is an immortalized cell line derived from cervical cancer cells. These cells (HeLa) contain 76 to 80 total chromosomes (instead of the 46 chromosomes that contain normal-diploid body cells), some of which are heavily mutated. These mutations can affect CDKs that control the cell cycle as well as checkpoint-control mechanisms (for example, those resulting from DNA damage), thereby cells do not enter programmed cell death (apoptosis) and proliferate uncontrollably.
Answer: Option A) 99% of that in the entire atom
Explanation:
An atom consists of three subatomic particles named protons, neutrons and electrons. The protons and neutrons are found in the nucleus of the atom, while the mass of electrons is 1/1840 (negligible).
Thus, the mass of protons and neutrons in the nucleus makes 99% of the entire atom
The question has options that are given as below:
A. Some potatoes would be more likely to have a genetic resistance to the disease and survive. B. The potatoes would have been able to trade genes so that they could survive the disease. C. More of the potatoes would have been edible varieties. D. None of the potatoes would have been infected by the disease.
Answer:
The correct answer is - A. Some potatoes would be more likely to have a genetic resistance to the disease and survive.
Explanation:
Genetic resistance is the capability or ability of some individual organisms of a population or species have to adapt the environmental or genetic changes and survive while other organisms of species are not able to do the same.
In this case, some of the potatoes more likely to show genetic resistance to the disease and condition and survive from the devastation of the potato blight
I'd go with A. can interact to influence a trait, such as eye color
Answer:
The lytic cycle involves the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell. The lysogenic cycle involves the incorporation of the viral genome into the host cell genome, infecting it from within.
