Answer:
The Restriction Fragment Length Polymorphism (RFLP) and the Polymerase Chain Reaction (PCR) are techniques used in molecular biology to identify polymorphisms in DNA samples obtained from different species, organisms, varieties, strains, etc. In the case of RFLP, the DNA is digested with restriction enzymes, so the resulting fragments have different lengths, while in the PCR technique the DNA fragments are obtained by successive amplification cycles and they have the same length.
Answer:
A. decreasing the speed at which filtrate flows through the nephron, leading to increased re-absorption of water.
Explanation:
Antidiuretic hormone (ADH) functions at the cellular level by decreasing the speed at which filtrate flows through the nephron, leading to increased reabsorption of water. This helps during dehydration.
This is a semiarid biome characterized by a mixture of shrubs and open woodlands. In the open woodlands, there are large areas of grasses and wildflowers, mixed with a few large trees. Chaparral has hot and dry summers and cool, moist winters.
Answer:
There is no change, the lac l gene is constitutively expressed, regardless of the presence of lactose.
Explanation:
Lacl gene codes for the lac repressor hence is always expressed to produce lac repressors which may or may not be bounded dependent on the presence of lactose. Lacl gene expression is not regulated, thus is constitutively expressed.
This is referring to meiosis, which happens just once to make reproductive cells, unlike mitosis which is just simple copying.
In mitosis, one cell splits into two, but the number of chromosomes doesn't change. The original cell makes two copies of its chromosomes and divides them up.
In <em>meiosis</em>, however, our cell doesn't bother making those two copies. It just takes what it has and divides it between two new cells.
