Answer the following Multiple choice. 1.If there are 80 chromatin threads during the interphase stage, how many chromosomes will be in metaphase II a. 40 b. 80 c. 160 d. 0 2.A diplod cell with 30 chromosomes undergoes meiotic cell division. How many centromeres is present in anaphase I? * a. 15 b. 30 c. 60 d. 0 3.A diplod cell with 30 chromosomes undergoes meiotic cell division. How many chromatids is present in each cell in anaphase II? * a. 15 b. 30 c. 60 d. 0 4. A diplod cell with 30 chromosomes undergoes meiotic cell division. How many chromatids is present in anaphase I? * a. 15 b. 30 c. 60 d. 0 5.In a test cross, a homozygous recessive parent (mm) and a heterozygous parent (Mm) are crossed. What is the phenotypic probability of the offspring? * a. 100% Mm b. 100% mm c. 50% Mm and 50% mm d. 75% Mm and 25% mm e. None of the choices

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Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: