Below is a list of steps that must occur for DNA to be replicated. 1. Hydrogen bonds are broken between nitrogen bases
II. Two double helixes form
III. DNA Unwinds
IV. Free nucleotides are added to template strands
Which of the following correctly identifies the order of the steps?
I, II, III, IV
II, I, III, IV
O 1H, I, IV, 11
1. IV. II, 11

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.

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.