Answer:
Cancer is basically a disease of uncontrolled cell division. Its development and progression are usually linked to a series of changes in the activity of cell cycle regulators. For example, inhibitors of the cell cycle keep cells from dividing when conditions aren’t right, so too little activity of these inhibitors can promote cancer. Similarly, positive regulators of cell division can lead to cancer if they are too active. In most cases, these changes in activity are due to mutations in the genes that encode cell cycle regulator proteins.
Explanation:
Answer:
a
Explanation:
both of the cases the organisms are fighting for a resource
Energy
they could be producers or consumers
producers make their own food/energy
consumers get energy from other living things
I want to say the liver and/or kidneys . . .
Answer:
The STR fragments will have different size for different animals.
Explanation:
- STR means Short Tandem Repeats.
- STR forms the genome's microsatellite region.
- STR or microsatellite is that region of the genome where, about two to seven base pairs of the DNA (for example, ATGATGATGATG), are repeated for multiple time. Such sequences can have few hundred repeats.
- While replicating these micro-satellite regions, the accuracy of the DNA polymerase in proof-reading the sequence of the newly synthesised strand, decreases, due to the multiple repeats.
- As a result of this, the DNA polymerase either adds more or adds less of such repeated sequences as compared to the parental DNA sequence. This results in generation of polymorphism (different microsatellite size in different individuals) in the repeat regions.
- Due to difference in size of the STR in different individuals, the size of the fragment amplified through PCR will vary for different elephants.
