Chapter 9: Self-Quiz Since most somatic (body) cells of a fruit fly have 8 chromosomes each, the zygote would have 2 chromosomes 4 chromosomes 8 chromosomes 16 chromosomes 32 chromosomes At which stage of mitosis are chromosomes arranged along a plane at the midline of the cell? anaphase telophase metaphase G2 interphase A diploid cell contains in its nucleus an even number of chromosomes an odd number of chromosomes one copy of each homologue either an even or an odd number of chromosomes two sister chromatids of each chromosome during G1 How many chromosomes are in a human sperm cell? 8 16 23 46 92 Synthesis of new DNA occurs during prophase interphase mitosis cytokinesis formation of the cell plate What is the attachment site on the chromosome for pulling chromosomes apart during mitosis? the cell plate the aster the centriole the kinetochore none of the above Bacterial cells divide into two new cells by a process called duplication forming a cell plate forming a cell furrow mitosis fission What is the cell doing in the "S" phase of interphase? resting general cell metabolism synthesizing DNA making a spindle undergoing differentiation Normally dividing cells do actual cell division in two events, known as interphase and mitosis mitosis and cytokinesis nuclear division and chromosomal division interphase and cytoplasmic division interphase and cytokinesis Sister chromatids are duplicate chromosomes held together by a common centromere specialized gamete-forming cells nonfunctional chromosomes homologous pairs of chromosomes different in their genetic content Prokaryotic and eukaryotic cell reproduction differ primarily in that: Prokaryotic cells reproduce asexually, but eukaryotic cells do not. Each prokaryotic cell has a circular chromosome, but the chromosomes of eukaryotic cells are linear. Prokaryotic cells lack nuclei and do not replicate their DNA before dividing, but eukaryotic cells have nuclei and replicate their DNA before dividing. Prokaryotic chromosomes have DNA and protein, but eukaryotic chromosomes are made of only DNA. They do not differ significantly in any way. Which sequence accurately describes the cell cycle of nongonadal cells? G1 -> G2 -> S -> prophase -> metaphase -> anaphase -> telophase -> S -> G2 -> prophase -> metaphase -> anaphase -> telophase -> G1 -> G1 -> S -> G2 -> prophase -> anaphase -> metaphase -> telophase -> prophase -> metaphase -> telophase -> anaphase -> G1 -> S -> G2 -> G1 -> S -> G2 -> metaphase -> prophase -> anaphase -> telophase -> If a drug that inhibits polymerization of microtubules is added to a normal diploid (2n) animal cell as it begins its cell cycle, the cell will divide normally, forming 2 diploid daughter cells die due to lack of a spindle apparatus complete its cell cycle, forming 2 tetraploid (4n) cells due to lack of a spindle apparatus Complete its cell cycle but remain as one tetraploid cell, since the spindle and other microtubules necessary for cytokinesis are lacking. None of the above outcomes are likely. A plant cell divides into two new individual cells through binary fission forming a cell plate forming a cell furrow forming a spindle apparatus nuclear disintegration Designed in cooperation with Andrew Stull and Steven Brunasso. Last Update - July 25, 1997 © Prentice-Hall, Inc. A Simon & Schuster Company Upper Saddle River, New Jersey 07458 Legal Statement
Designed in cooperation with Andrew Stull and Steven Brunasso. Last Update - July 25, 1997
Last Update - July 25, 1997
