Question

determine if the following statements are true or false *

in human a human egg & sperm, they each have 23 chromosomes
meiosis has 8 phases
during cytokinesis in animal cells, a new plasma membrane and cell wall form
cell division in prokaryotes is called mitosis
an \x\ shaped chromosome is made from two identical chromatids
in eukaryoties, he nucleus and cytoplasm divide at the same time
interphase is the longest portion of the cell cycle

Explanation:

Analyze gamete chromosome count

Human gametes (sperm and egg) are haploid cells containing 23 chromosomes.

Analyze meiosis phases

Meiosis consists of two consecutive divisions (Meiosis I and II), each having 4 main stages (prophase, metaphase, anaphase, telophase), totaling 8 phases.

Analyze cytokinesis in animal cells

Animal cells do not have cell walls; they form a cleavage furrow, whereas plant cells form a cell plate and new cell wall.

Analyze prokaryotic cell division

Prokaryotes lack a nucleus and divide via binary fission, not mitosis.

Analyze chromosome structure

An "X"-shaped duplicated chromosome consists of two identical sister chromatids joined at the centromere.

Analyze division timing in eukaryotes

Karyokinesis (nuclear division) occurs before cytokinesis (cytoplasmic division), not simultaneously.

Analyze cell cycle duration

Interphase (consisting of G1, S, and G2 phases) accounts for approximately 90% of the cell cycle's duration.

Answer:

No.	Statement	Answer
2	Meiosis has 8 phases	True
3	During cytokinesis in animal cells, a new plasma membrane and cell wall form	False
4	Cell division in prokaryotes is called mitosis	False
5	An "X" shaped chromosome is made from two identical chromatids	True
6	In eukaryotes, the nucleus and cytoplasm divide at the same time	False
7	Interphase is the longest portion of the cell cycle	True