What happens to red blood cells in the following solutions A) Salt water?
B) Distilled Water ie. Hypotonic solution?
C) Tap water ie. Isotonic Solution?

A) The red blood cell will lose water and shrink

B) The red blood cell will gain water, swell and eventually burst; aka hemolysis

C) The red blood cell will fill up with water and burst

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'