Q2.12. When are sister chromatids (in/from the same chromosome) equivalent to each other? Check all that apply: Before crossing over in meiosis I Before crossing over in meiosis II Throughout meiosis I Throughout meiosis II Throughout mitosis

Q2.12. When are sister chromatids (in/from the same chromosome) equivalent to each other? Check all that apply: Before crossing over in meiosis I Before crossing over in meiosis II Throughout meiosis I Throughout meiosis II Throughout mitosis

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter2: Cells And Cell Division

Section: Chapter Questions

Problem 23QP: A cell has a diploid number of 6 (2n = 6). a. Draw the cell in metaphase of meiosis I. b. Draw the...

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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

Q2.12. When are sister chromatids (in/from the same chromosome) equivalent to each other?
Check all that apply:
Before crossing over in meiosis I
Before crossing over in meiosis ||
Throughout meiosis I
Throughout meiosis II
Throughout mitosis

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Q7: The diagram below shows a cell during Meiosis II: (A) Kinetochore Kinetochore microtubule Centrosome Centriole Polar microtubule LIFE 8e, Figure 9.9 (Part 1) LIFE THE SCIENCE OF BIOLOGY, Elghth Edtion 02007 Sinauer Associates, Inc. and W. H. Freeman & Co. а. What phase of Meiosis II is the cell in? How do you know? b. Assuming all of the chromosomes present during Meiosis II are shown in the figure above, how many chromosomes (counting homologous pairs as two chromosomes) does a gamete from this organism have? с. Draw the same cell during the same phase of Meiosis I. Label the elements.
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Distinguishing Meiosis I from Meiosis I| How do you know what is meiosis I and what is meiosis II? Here are some hints to help you determine how to identify if a cell is undergoing meiosis I or meiosis II. • In prophase l and metaphase I, the chromosomes are found in their homologous pairs. In prophase Il and metaphase ll, there are single duplicated chromosomes. • In anaphase l and telophase I, the chromosomes are duplicated (shaped like Xs). In anaphase ll and telophase II, the chromosomes are not duplicated. Take a look at the picture, and then answer the questions How many chromosomes will be in the gamete produced when this cell has finished meiosis? O 1 О 4 O 2 O 3 O 6