Question

1:00 PM Sun Mar 29 < Q ó accddddof2ab631559051120409ab15d v 5 @ 53% X x accdddd0f2ab6.. Genetics. Analy x Organic Chemist. x Organic Chemist. Genetics ppts BIO 208 Genetics Lecture Desing home Chapter 3 Homework Problems 30 points Use your textbook tower the following questions from Chapter 3: Reproduction and Chromosome Transmission Complete this assignment and submit it via email: salon dillard.edu - be use to save as so that you can rename your completed assignment with your last name being the first word in the file name. ASSIGNMENT IS DUEON March 20, 2020 1. The process of binary fission begins with a single mother cell and ends with two daughter cells Would you expect the mother and daughter cells to be prenetically identical Explain why why not 2. What is a chromosome homolog With regard to genes and alleles, how we chromosome homologs similar to and different from each other! 3. What is a sister chromatid! Arc sister chromatids genetically similar or identical? Explain. 4. A species is diploid containing three chromosomes per set. Draw what the chromosomes would look like at the G, ad phases of the cell cycle. 5. For the following events, specify whether they occur during mitosis, meiosis or meio IL A. Separation of conjoined chromatidis within a pair of sister chromatids B. Pairing of homologous chromosomes C. Alignment of chromatids along the metapluse plate D. Artachment of sister chromatids to both poles 6. Describe the key events during pro that result is a reaction in the amount of genetic 7. Acelli dipende during the o n poci e three chrome Dew the w oment of chrome e of mind in your colored akcest dark whether 8. A cukaryotic cell is diploid containing 10 chromosomes (5 in each set). For mitosis andmeiosis, how many daughter cells would be produced and how many chromosomes would each one

Answer 1

1. In mitosis two daughter cells are formed which are identical in shape, size and characters because in mitosis no cross over takes place as a result no exchange of chromatin material,no recombination. So genetically the two cells are identical.

2. Homologous chromosomes are identical in shape, size and characters and one is of paternal in origin and another is maternal in origin. The loci of a genes is same in two homologous chromosomes of a partcular trait and the alleles are present in the correspondong loci at the same place.

3. The longitudinal halves of a chromosome which are united at the centromere are called chromatids. The chromatids are similar in having DNA as they replicate from the one DNA molecule.

6. By the end of meiosis I a d in the anaphase I the chromosomes are arranged on the equitorial plate in such a way that the centromeres are facing towards the poles and chromatids on the equitorial plate. The spindle fibers pull chromosomes towards their poles so that the chromosome number is reduced to half in anaphase I.