In man, identical twins occur when
...In man, identical twins occur when
An ovum is fertilized by a sperm and then divide into two, each forming a separate embryo
an ovum fertilized by two sperms and then divides into two, each forming an embryo
two ova are fertilized at the same tine each forming an embryo
two ova are fertilized by a single sperm each forming an embryo after fertilization
one ovum first divides into two and each half is fertilized by a sperm before developing into an embryo
Correct answer is A
No explanation has been provided for this answer.
The source of the nitrates in the diagram is termed ...
A surprising fact about sickle cell disease is that it ...
Which of the following is not an aquatic habitat? ...
Which of the following features is not a characteristic of arteries? Arteries ...
Which of the following instruments is not used in measuring abiotic factors in a habitat? ...
An individual in the AB blood group is a universal recipient for blood donation because ...
The folded portion of mitochondrion is called ...
Individuals belonging to the blood group O are universal donors because ? ...