The photo on the left shows an early frog embryo after three mitotic divisions of a fertilized egg. This embryo has how many cells?
To explain: How many cells would be present in a frog embryo that has undergone three mitotic divisions.
Concept introduction: A fertilized egg is called as a zygote until it divides into sixteen cells, forming a ball-shaped structure called morula. Soon after fertilization, the zygote starts to multiply at a huge rate to form successive stages of the embryo. The fertilized egg then starts to prepare for mitosis, which involves the distribution of duplicated chromosomes to daughter cells.
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