Answer:
Fraternal - 2 egg cells
Identical - split of zygote
Explanation:
Fraternal twins are likely to be formed by 2 different egg cells being simultaneously sent by the ovaries and both of them being fertilized by the sperm cells. They are non-identical because the DNA of the 2 egg cells and the 2 sperm cells are different.
Identical twins are formed after a single egg cell has been fertilized by a single sperm cell, then split after the first division. This results in 2 genetically identical embryos because they were formed from the same fertilized egg.
B; enlargement of the frontal lobe
hope this helps
Food temperatures in hot holding units must be kept at 135 Fahrenheit degree or hotter:
Answer:
Umm..
Explanation:
Mine is trying to stay fit and only eat fast food 1 time a month
And try the run 10 laps in 11 mins
Answer:
Genes are passed down, or inherited from a person’s parents.
A component called chromosome contains each gene’s instructions.
Any one of the 22 chromosomes that are not found on the X or Y chromosomes are called X-linked genes.
Explanation:
Hope this helps and have a nice day!
<em>-KindnessMatters-</em>
