Answer:
50 %
Explanation:
A woman has fixed number of eggs. With each menstrual cycle, one egg is released. By the time a woman reaches the age of early 40s, the egg count has reduced tremendously and the chances of a woman being fertile are very low.
Along with women, men also develop some issues with their sperm count and speed.
Thus the probability of a man and woman having baby is 50% at the age of 40.
Answer:
the methyltransferase catalyzes the addition of a methyl group onto the 5' position of cytosine through a complex, multi-step process.
Explanation:
Answer:
It collect data about the universe.
Explanation:
A space probe is a type of spacecraft that travels through space in order to collect information about the universe. In space probes, there is no astronauts present it can be controlled from the earth by scientists. Space probes moves in the universe and collect data then send this data back to the scientists present on earth in order to study. Sputnik 1 was the first space probe which was sent into the space.
Rhe eustachian tube connects the middle ear to the <span>nasopharynx. </span>
The correct answer is true.
Negative staining is often used in diagnostic microscopy and it is the opposite of positive staining where the specimen is stained and background not.
Negative staining is used for the bacteria that are difficult to stain such as Spirilla. It is also used for the study of the morphological shape, size and arrangement of the cells that are too delicate to be heat-fixed.
