2n = 2 pairs of G1 → S→ G2 homologous -> -> chromosomes Skip prophase I, do not draw crossing over Metaphase I Draw nondisjunction happen to 21 Anaphase | Metaphase II Anaphase II Telophase II & egg formation

2n = 2 pairs of G1 → S→ G2 homologous -> -> chromosomes Skip prophase I, do not draw crossing over Metaphase I Draw nondisjunction happen to 21 Anaphase | Metaphase II Anaphase II Telophase II & egg formation

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter11: Meiosis And Sexual Reproduction

Section: Chapter Questions

Problem 12RQ: How do telophase I and telophase II differ during meiosis in animal cells? Cells remain diploid at...

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Concept explainers

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:

Question

100%

2n = 2 pairs of G1 SG2 homologous
chromosomes Skip prophase I, do not draw crossing
over Metaphase I Draw nondisjunction happen to 21
Anaphase | Metaphase II Anaphase II Telophase II &
egg formation
2n = 2 pairs of
G1 G2 homologous
chromosomes
14
S
Skip prophase I, do not draw crossing over
Metaphase I
Draw nondisjunction happen to 21
Anaphase I
Metaphase II
Anaphase II
Telophase II
& egg formation
Label which chromosome of
mono/trisomy.
Which zygotes are aborted?
G2
G1
ос
old
&
Zygote formation, add a normal sperm cell to
each egg below
OOOO

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Step 1: G2 phase DNA damage check before replication.

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Step 2: Mitosis ensures accurate cell replication and division.

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