Answer:
There are two kinds of cellular communication: communication between cells is called intercellular signaling, and communication within a cell is called intracellular signaling.
Explanation:
Answer:
Cross overs can lead to formation of chromosome pairs that have no mutant allele.
Explanation:
Cross overs can lead to formation of chromosome pairs that have no mutant allele.
For example -
Suppose "X" is a mutant allele and "x" is a mutant free allele.
Now when two homologous chromosomes contains a single mutant allele in different parts of the chromosome are crossed the following offspring are produced
X x
X XX Xx
x Xx xx
"xx" is a mutant free genotype.
Thus, crossing over can create a single mutation-free chromosome
The answer to your question is false cause…<span>Diffusion and osmosis are related concepts, which involve movement of materials from areas of high concentration to areas of low concentration. Diffusion involves movement of any chemical from one place to another; osmosis refers to movement of water across a membrane. Only water can undergo osmosis.</span>
Answer:
Directly counting blood cells or tissue cells by using a hemocytometer can determine the concentration of a known volume. Counting the number of colonies that arise on a pour plate can calculate the concentration by multiplying the count by the volume spread on the pour plate.
The main and the most promising difference between active and passive transport is, passive transport does not require energy while active energy does.
