Answer:
GnRH
Explanation:
GnRH stimulates pituitary secretion of luteinizing hormone (LH) and follicle stimulating hormone (FSH). LH and FSH then stimulate the ovaries, resulting in the growth of secondary preantral follicles and ovulation.
Although some release hormones are also secreted in pulses, GnRH is unique because pulsed gonadotroph stimulation is necessary for normal LH and FSH synthesis and secretion, while continuous infusion of GnRH - or the use of such an agonist hormone that stimulates continuous infusion - results in negative modulation of gonadotropic responsiveness to GnRH. This property is clinically used to treat hormone-responsive conditions such as endometriosis and precocious puberty.
Out of the following give choices;
a. All DNA strands
contained only the heavy nitrogen isotope.
b. Half of the DNA strands contained only the light nitrogen
isotope.
c. All DNA strands contained both heavy and light nitrogen
isotopes.
d. All DNA strands contained only the lighter nitrogen
isotope.
The answer is b. Meselson–Stahl experiment demonstrated the semi-conservative model of DNA replication.
When DNA is replicated, one strand of the new double
helix strand is the parent's strand while the other is the newly synthesized
one. This made the semiconservative model stand out over the other two, dispersive
and conservative models.
Answer:
Apples : adenine
Trees : thymine
Cars : cytosine
Garages : guanine
Explanation:
The bases in DNA are adenine, thymine, guanine, and cytosine. It helps to remember the popular mnemonic, "apples in the tree," that helps you remember that A goes with T, and "car in the garage," so C goes with G, to understand how DNA bases pair. The bases in RNA are adenine, uracil, guanine, and cytosine.
