Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 13, Problem 6TYK
Discuss Concepts Can a linkage map be made for a haploid organism that reproduces sexually?
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What is one statement that would support the theory that all organisms are related?
A) The genetic code is almost universal.B) All flies have 2 wings.C) Eukaryotes have mitochondria.D) Prokaryotes have circular chromosomes.E) That the Theory of Pangenesis has held up to scrutiny for thousands of years
What is the difference between cross and self-fertilization? A. In cross-fertilization the gametes from one plant are used to fertilize the gametes of another plantB. In cross-fertilization the gametes from one plant are used to fertilize the gametes from the same plant
C. In self-fertilization the gametes from one plant are used to fertilize the gametes from another plantD. In cross-fertilization insects are used to pollinate the plants while in self-fertilization the investigator pollinates the plants
Explain the below concept ?
Meiosis Is Critical to Sexual Reproduction in All Diploid Organisms
Draw diagrams to represent a cross of a mutant ovule/egg and a normal pollen/sperm. Also include a diagram of the zygote. Will the offsprings have the mutation? Explain your answer
Chapter 13 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 13.1 - You want to determine whether genes a and b are...Ch. 13.2 - You have a true-breeding strain of...Ch. 13.3 - What mechanisms are responsible for: (a)...Ch. 13.4 - A man has Simpson syndrome, an addiction to a...Ch. 13.4 - Prob. 2SBCh. 13.5 - Prob. 1SBCh. 13 - In humans, redgreen color blindness is an X-linked...Ch. 13 - The following pedigree shows the pattern of...Ch. 13 - Individuals affected by a condition known as...Ch. 13 - A number of genes carried on the same chromosome...
Ch. 13 - Prob. 5TYKCh. 13 - Discuss Concepts Can a linkage map be made for a...Ch. 13 - In Drosophila, two genes, one for body color and...Ch. 13 - Another gene in Drosophila determines wing length....Ch. 13 - Prob. 9TYKCh. 13 - You conduct a cross in Drosophila that produces...Ch. 13 - Discuss Concepts Crossing-over does not occur...Ch. 13 - Prob. 12TYKCh. 13 - Prob. 13TYKCh. 13 - Prob. 14TYKCh. 13 - Prob. 1ITDCh. 13 - Prob. 2ITDCh. 13 - Prob. 3ITDCh. 13 - Prob. 4ITD
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- VISUALIZE Sketch a series of diagrams showing each of the following, making sure to end each series with haploid cells: (a)How a pair of alleles for a single locus segregate in meiosis (b)How the alleles of two unlinked loci assort independently in meiosis (c)How the alleles of two linked loci undergo genetic recombinationarrow_forwardDiscuss whether or not the X and Y chromosomes are really distinct linkage groups?Hint(X and Y chromosomes have a few genes in common. These genes are inherited in a pseudoautosomalpattern.)arrow_forwardCompare the following three terms: polyploidy, aneuploidy, and nondisjunction. Briefly discuss examples of each of these conditions.arrow_forward
- Drosophila melanogaster has which four linkage groups?arrow_forwardThe mouse haploid genome contains about 2.9 × 109 nucleotide pairs of DNA. Indicate how many nucleotide pairs of DNA are present in each of the following mouse cells: (a) somatic cell, (b) sperm cell, (c) fertilized egg,(d) primary oocyte, (e) first polar body, (f) secondary spermatocyte.arrow_forwardOne reason that worker bees forgo their own reproduction to help their sister (the queen) reproduce is that female bees are more closely related to their sisters than they are to their own offspring. This quirk of genetics results from the fact that bees have haplodiploid sex determination, in which females are diploid, with a mother and a father, but males are haploid, developing from unfertilized eggs. Because males are haploid, they produce sperm by mitosis. Explainwhy haplodiploid sex determination causes females to be more closely related to their sisters than to their offspring.arrow_forward
- A heterozygous diploid yeast Aa Bb went through meiosis. What percentage of the haploid spores will have recombinant combinations of alleles? What if genes A and B are unlinked? Explain What is genes A and B are linked? Explainarrow_forwardSome organisms—for example, certain fungi—reproduce asexually when the environment is favorable and sexually when the environment becomesunfavorable. What might be the evolutionary advantage of sexual reproduction with the associated process of meiosis during unfavorable conditions?arrow_forwardGive typing answer with explanation and conclusion Consider a pair of homologous chromosomes heterozygous for three genes (e.g. ABC / abc) during prophase I of meiosis. Let the sister chromatids of one homolog be numbered 1 and 2; and the sister chromatids of the other homolog be numbered 3 and 4. A crossover that would result in genetic recombination (e.g., Abc or aBC) could involve which chromatids? a. 1 & 2 or 3 & 4 b. 1 & 3 or 2 & 4 c. 1 & 4 or 2 & 3 d. 1 & 3 or 1 & 4 or 2 & 3 or 2 & 4 e. any two of the four chromatidsarrow_forward
- Describe genetic studies which showed that yeastmitochondria are inherited biparentallyarrow_forwardVISUALIZE Draw a simple sketch illustrating how nondisjunction in meiosis can lead to Down syndrome.arrow_forwardProvide two reasons why meiosis leads to genetic variation in diploid organisms.arrow_forward
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