Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 30, Problem 14TYK
Design an Experiment Experiments on the orange bread mold Neurosporacrassa, an ascomycete, were pivotal in elucidating the concept that each gene encodes a single enzyme. As N. crassa ascospores arise through meiosis and then mitosis in an ascus, each ascospore occupies a particular position in the final string of eight spores the ascus contains:
This quirk of ascospore development was extremely useful to early geneticists, because it vastly simplified the task of figuring out which alleles ended up in particular ascospores following meiosis. Recalling genetics topics discussed in Chapter 11, why was the analysis easier?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The figure below shows the life cycle of the fungus Neurospora. The adult stage of the Neurospora is a multicellular haploid:
a. Between which two stages of the Neurospora life cycle do most mitotic cell divisions occur?
b. Neurospora has an arginine amino acid synthesis pathway shown below:
Suppose I have a neurospora strain that has a mutation such that it will not grow unless I supplement the media (food) with arginine (but not with citrulline or ornithine). What gene is mutated? Explain your reasoning.
c. Suppose I take the strain above that only grows with arginine supplements and cross it to a different mutant Neurospora strain that grows with arginine and citrulline supplements but not ornithine supplements. Assming genes A, B and C are unlinked and there is only one mutation per strain:
i) What percentage of the progeny will grow on ornithine?
ii) What percentage on citrulline?
iii) What percentage on arginine?
Show your work for i), ii) and iii). [Can be answered in less…
Although ascospores are produced by mitotic division, none of the spores develop into fungi that are identical to either parental hyphae. What is the BEST explanation for this observation?
A.
The spores inherit half their genes from each parent.
B.
The spores inherit haploid nuclei from their parents.
C.
The spores inherit mutations as a result of meiosis.
D.
The spores inherit mutations as a result of mitosis.
Photo Attatched
When the Ascomycetes fungus reproduces sexually, mating type A fungi cross fertilize mating type a fungi. The resulting zygotes undergo meiotic and then mitotic division to produce asci with eight ascospores. The ascospores in the asci are ordered and reflect the position of the parental nuclei in the zygote.
Use the passage to answer the question.
Based on the diagram, how many unique ascospores are produced in each ascus resulting from the cross fertilization of two Ascomycetes fungi?
A. 1
B. 2
C. 4
D. 8
Chapter 30 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 30.1 - Prob. 1SBCh. 30.1 - Prob. 2SBCh. 30.1 - Prob. 3SBCh. 30.2 - Prob. 1SBCh. 30.2 - Prob. 2SBCh. 30.3 - Prob. 1SBCh. 30.3 - Prob. 2SBCh. 30.4 - Prob. 1SBCh. 30.4 - Prob. 2SBCh. 30 - Prob. 1TYK
Ch. 30 - Prob. 2TYKCh. 30 - Prob. 3TYKCh. 30 - Prob. 4TYKCh. 30 - Prob. 5TYKCh. 30 - A mushroom is: a. the food-absorbing region of an...Ch. 30 - Prob. 7TYKCh. 30 - Prob. 8TYKCh. 30 - Prob. 9TYKCh. 30 - In a college greenhouse, a new employee observes...Ch. 30 - Prob. 11TYKCh. 30 - Prob. 12TYKCh. 30 - Prob. 13TYKCh. 30 - Design an Experiment Experiments on the orange...Ch. 30 - Prob. 15TYKCh. 30 - Prob. 1ITDCh. 30 - Prob. 2ITD
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Although ascospores are produced by mitotic division, none of the spores develop into fungi that are identical to either parental hyphae. What is the BEST explanation for this observation? A. The spores inherit half their genes from each parent. B. The spores inherit haploid nuclei from their parents. C. The spores inherit mutations as a result of meiosis. D. The spores inherit mutations as a result of mitosis.arrow_forwardWhen the Ascomycetes fungus reproduces sexually, mating type A fungi cross fertilize mating type a fungi. The resulting zygotes undergo meiotic and then mitotic division to produce asci with eight ascospores. The ascospores in the asci are ordered and reflect the position of the parental nuclei in the zygote. Use the passage to answer the question. Although ascospores are produced by mitotic division, none of the spores develop into fungi that are identical to either parental hyphae. What is the BEST explanation for this observation? A. The spores inherit half their genes from each parent. B. The spores inherit haploid nuclei from their parents. C. The spores inherit mutations as a result of meiosis. D. The spores inherit mutations as a result of mitosis.arrow_forward8) The diagram below represents a yeast cell that is in the process of budding, a form of asexual reproduction. Nucleus -Bud "Nucleus Which of the following statements describes the outcome of this process? A) The two cells that result will each contain half the species number of chromosomes. B) The two cells that result will have identical DNA. C) The bud will develop into a zygote. D) The bud will start to divide by the process of meiotic cell division.arrow_forward
- no need to explain just need to know if its a,b,c or d 1.) The life cycles of some plants contains two alternating generations of adults. The diploid adult is called the sporophyte generation and the haploid adult is the gametophyte generation. The diploid plants of the sporophyte generations produce spores by the process of: a.) amitosis b.) meiosis c.) mitosis d.) binary fission 2.) A scientist was examining a human cell with 22 pairs of autosomes, an X chromosome and a Y chromosome. What conclusions can we drawn about the cell? a.) It is a somatic, diploid and male cell. b.) It is a somatic, diploid and female cell. c.) It is a gametic, haploid and male cell. d.) It is a gametic, diploid and male cell. 3.) What will be the number of chromosomes in Turner’s syndrome and Klinefelter's syndrome of an organism whose haploid number is 20? a.) 39 in Turner’s syndrome and 41 in Klinefelter’s syndrome b.) 41 in Turner’s syndrome and 39 in Klinefelter’s syndrome c.) 19 in Turner’s…arrow_forwardEXPERIMENT : INDUCTION OF CALLUS SOMATIC EMBRYOGENESIS OF HAPLOID PLANTS Observation after a few weeks: The cell culture has been contaminated as shown in the image section. Question: Please give the source(s) of contamination in this experiment and the way(s) to prevent it.arrow_forwarde. The 5' to 3' DNA template will be converted to mRNA. CLEAR MY CHOICE The growth of spores to mycelium is known as .. ... .. Answer: A berry plant uses the sun's energy to provide fruit, which is then consumed by a bird. Which characterist best represent? meet.google.com is sharing your screen. Sto a. All living things carry out the process of reproduction pe here to searcharrow_forward
- Use this diagram of a Chlamydomonas cell for the following question. M CY CL is chloroplast, CY is cytoplasm, M is mitochondrion, N is nucleus. Which of the following locations would be the site of transcription of genes involved in the process of cellular respiration?arrow_forwardGenetically indicate how it is Euploidy, please provide TWO examples and describe them in detail Aneuploid provide TWO examples and describe them in detailarrow_forwardUse this diagram of a Chlamydomonas cell for the following question. M N CY CL is chloroplast, CY is cytoplasm, M is mitochondrion, N is nucleus. Which of the following locations would be the site of transcription of rRNA genes?arrow_forward
- When the Ascomycetes fungus reproduces sexually, mating type A fungi cross fertilize mating type a fungi. The resulting zygotes undergo meiotic and then mitotic division to produce asci with eight ascospores. The ascospores in the asci are ordered and reflect the position of the parental nuclei in the zygote. Use the passage to answer the question. A fungus with white spores cross fertilizes a fungus with black spores. If 10% of the progeny bear white spores while 90% of the progeny bear black spores, what must be true? A. The trait for spore color is determined by exactly one gene. B. The trait for spore color is determined by more than one gene. C. The allele for black spores is dominant over that for white spores. D. The allele for white spores is dominant over that for black spores.arrow_forwardEXPERIMENT 4: INDUCTION OF CALLUS SOMATIC EMBRYOGENESIS OF HAPLOID PLANTS From the observation, which has given in the image section what general conclusion you can make?arrow_forwardGeneticsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Mechanisms of Genetic Change or Evolution; Author: Scientist Cindy;https://www.youtube.com/watch?v=5FE8WvGzS4Q;License: Standard Youtube License