<span>After a zygote undergoes cleavage division it is called a blastula. A blastula is a </span><span>spherical ball of cells that is created by cleaving the zygote.</span>
The correct option is this: PROTO ONCOGENES BECOMES ONCOGENES.
Proto oncogenes genes are those genes that regulate the process of normal cell division in the living system. These cells starts cell division when necessary and terminate the cell division when the necessary cells have been formed. When these genes lose the power to regulate cell division, the cells continue to divide indefinitely without stopping and this leads to a medical condition called cancer. At this stage, the proto oncogenes have been turned into oncogenes, which are genes that caused uncontrolled cell cycle divisions.
Human and butterflies have a lot in common
1.They both start from an egg
2.The butterflies grows into a caterpillar first and a human starts as a toddler
3.after they adapt and the butterfly starts to become a butterfly and the same Happens to a human after a toddler they be a child.
Autosomal trisomies and monosomies are rare in humans because zygotes with these chromosomal aberrations are rarely viable. Hope this helps! Mark brainly please!
Answer:
Notice the large difference in the number of hydrogen ions on the two sides of the membrane. This difference is a hydrogen ion, or proton, concentration gradient. The energy associated with this gradient is used to synthesize ATP from ADP and Pi. This occurs at the ATP synthase complex.
Explanation:
