Meiosis O Allows fish to control their buoyancy O Is a cell division that produces a diploid cell All of the above Provides for greater genetic variability in the next generation Is a critical process for asexual reproduction

Meiosis O Allows fish to control their buoyancy O Is a cell division that produces a diploid cell All of the above Provides for greater genetic variability in the next generation Is a critical process for asexual reproduction

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter52: Population Ecology

Section: Chapter Questions

Problem 15TYK

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Concept explainers

Angiosperm Reproduction

The process of sexual reproduction in flowering plants is known as angiosperm reproduction. In flowering plants, reproduction begins with pollination, or the transfer of male gametes (pollen) from the male reproductive organ (anther) to the female reproductive organ (pistil), and ends with fertilization of the female gametes (egg), which produces a zygote, which then grows to become a mature plant.

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Step 1

Cell cycle/division is a pivotal process in all living organisms and includes cell division, replication and growth. All these processes should be carried out in a regulated manner in order to ensure correct division and production of intact progeny. Cell cycle is a sequence of events by which a cell duplicates its genetic material, synthesizes other cell constituents and divides into two daughter cells.

Cell division is of two types : mitosis is where the parental cell divides into two cells with identical genetic material and meiosis involves the reduction of the parental genetic material into equal halves.

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Question #5 Stages of MeiosisPlease help me for part a and b, thank you so much!
Question 49 The scientist(s) who showed that DNA contained equal amount of certain nitrogen bases (i.e., A=T and C=G) is (are): Question 50 The cell that starts meiosis I is: haploid diploid a somatic cell a gamete Question 51 What is “silent” mutation? Question 52 Where does mitosis occur within this figure? (see letters in boxes) A B C D C and D Question 53 What form of chromosome abnormality is shown in the following Figure? Question 54 What type of mutation causes Sickle cell anemia? Question 55 The order of nucleotide bases on two sides of a DNA double-helix is Identical Similar Complemetary Nonidentical Question 56 What types of mutations are NOT passed to future generations? Question 57 What enzyme copies DNA into RNA? Question 58 Meiotic cell division replicates a cell's DNA ____________ and then divides ______________ twice; twice. once; once. None of the answer choices are correct. twice; once. once; twice. Question 59 ____ divide during meiosis I, while…
QUESTION 39 Which of the following is a benefit of sexual reproduction? A. Offspring are genetically identical to the parents. B. Offspring differ genetically from themselves and from their parents. C. There is a possibility of mutations that lead to disease. D. All of the above.
Question 68 Sister chromatids are best described as two chromosomes having the same genes in the same order but having different alleles. the same alleles of the same genes in a different order. different genes in the same order and possibly having different alleles of some genes. different alleles of the same genes arranged in a different order. an identical DNA sequence. Question 69 During what phase of meiosis do the homologous pairs of chromosomes line-up in the middle of the cell with the help of spindle fibers? Telophase I Anaphase I Metaphase I Prophase I Question 70 A mutation in the tumor suppressor gene p53 prevents the protein from functioning normally. What is most likely to occur as a result of this mutation? growth and replication of damaged cells apoptosis normal cells will undergo additional mutation growth of cells with repaired DNA
QUESTION 34 What would be predicted to be the most common cause of chromosome translocations in Meiosis? A. Incorrect resolution of chiasmata in Meiosis II B. single point mutations during Meiosis II C. nondisjunction events resulting from incorrect resolution of chiasmata in Meiosis I D. improper cleavage of the cohesion complex
Question 18 of 25 A classical experiment studying the fate determination of stem cells in the developing embryo uses the transplantation of somites from one organism to another. In such an experiment, a scientist transplanted somites 20, 21, and 22 from the right side of the neural tube from five-day-old developing quail embryos into chick embryos. The transplantation was performed in two orientations so that the order of the somites was sometimes reversed. Use the passage to answer the question. The quail somites transplanted in a conventional order were able to develop normally in the chick embryo. Which statement BEST explains this observation? A. The development of quail somites do not require signaling molecules. B. The development of chick somites do not require signaling molecules. C. Quail somites respond to chick signaling molecules. D. Chick somites respond to quail signaling molecules.
QUESTION 27 Identify the most accurate statement: a. Sexual reproduction is often costly due to the need to find a mate. b. Sexual reproduction results in more offspring per mother. c. Asexual reproduction is always bad for a species. d. Aexual reproduction is associated with an increase in heterozygosity.
Question 2 If a certain species has a DNA content of 5 picograms in each diploid cell's nucleus when the cell in in G1 of the cell cycle, what would be the expected DNA content (in picograms) of a diploid cell (from the same species) in mitotic prophase? Explain your reasoning. Consider ploidy changes and/or chromosome form changes, if applicable, when explaining your reasoning.
Question 38 If human gametes were diploid the products of fertilization would have more chromosomes than their parents. the products of fertilization would have fewer chromosomes than their parents. the products of fertilization would have the same number of chromosomes as their parents. the embryo would be diploid. fertilization could not occur. Question 39 Place these cells in order of occurrence for the stages of mitosis. Question 40 List 3 differences between DNA and RNA Question 41 What was the main outcome of Griffith's experiments? Question 42 Which of the following is TRUE about this cell shown below? chromosomes are replicated sister chromatids are separated crossing over has occurred cytokinesis is occurring Question 43 The process of translation occurs in the and the outcome is . Question 44 Which of the following is INCORRECTLY paired? helicase -- unwinds the double helix DNA polymerase -- joins nucleotides to form new DNA strands ligase -- adds new…
Question 14 The scientist (scientists) who used enzyme-digesting proteins to show that protein was not the genetic information transferred by bacteria is/are: Question 15 What is the role of mRNA? Question 16 The site on homologous chromosomes where crossing over occurs are called ___ Centromeres Chiasmata Kinetochores Spindle fibers
Question 4 Consider a diploid organism with a diploid number of 30. Show your work and/or explain logic on all parts. a. How many total chromatids will be present in a typical cell at mitotic metaphase? b. How many tetrads are present in a metaphase I cell of meiosis? c. How many dyads are present in a metaphase II cell in meiosis? d. How many monads are expected in each product cell at the end of meiosis II?
Question 3 If a certain species has a DNA content of 12 picograms in each diploid cell's nucleus when the cell in in G1 of the cell cycle, what would be the expected DNA content (in picograms) of a triploid cell (from the same species) in mitotic prophase? Consider ploidy changes and/or chromosome form changes, if applicable, when explaining your reasoning.