BIOL 1010/1020 CLASS ONLY CONNECT
BIOL 1010/1020 CLASS ONLY CONNECT
14th Edition
ISBN: 9781260038644
Author: Mader
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 3, Problem 3TC
Summary Introduction

To review:

The key function of the centriole is to assist with cell division in animal cells. As well as, the centrioles help in the formation of the spindle fibers which involved in the separation of the chromosomes during mitosis cell division.

Introduction:

When centrioles extend in all possible directions as long protein fibers known as microtubules, forming is called a spindle. A few of the microtubules attach the poles to the chromosomes by kinetochores connecting to protein complexes. Microtubule-organizing center (MTOC) is a structure found in eukaryotic cells and help in the organization of eukaryotic flagella and cilia and the organization of the mitotic and meiotic spindle apparatus, which separate the chromosomes during cell divisions.

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…
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