Biology: Unity and Div. of Life (Looseleaf)
14th Edition
ISBN: 9781305251311
Author: STARR
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 41, Problem 3CT
Some sperm mitochondria enter an egg during fertilization, but as sperm nature these mitochondria are tagged with a protein (ubiquitin) that marks them for destruction. What organelle carries out this destruction process?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
As a sperm cell finally approaches its final target, its acrosome becomes activated. The acrosome is a specialized organelle found in the cell’s head region and activation results in the exocytosis of several types of proteolytic enzymes.
Name 2 specific proteins you might expect the enzymes released by the acrosome to breakdown. What purpose does this play in the fertilization of the egg? Explain your reasoning.
In mitosis, why do the chromosomes need to condense in prophase and line up in metaphase? (To be clear, this is asking about the usefulness of these specific actions, not just that those things need to happen as part of the overall process.)
Even though cytokinesis is included with Mitosis, we generally consider it to be its own phase. Why?
by the time cytokinesis occurs, the cell has already split
by the time cytokinesis occurs, the cytoplasm has already split
by the time cytokinesis occurs, the nucleus has already split
by the time cytokinesis occurs, the cell has copied all of its chromosomes
Chapter 41 Solutions
Biology: Unity and Div. of Life (Looseleaf)
Ch. 41 - Sexual reproduction ___ . a. requires formation of...Ch. 41 - The ___ is a genetic dead end. a. polar body b....Ch. 41 - Prob. 3SQCh. 41 - Prob. 4SQCh. 41 - Prob. 5SQCh. 41 - Prob. 6SQCh. 41 - Male germ cells divide by meiosis inside the...Ch. 41 - Prob. 1DAACh. 41 - Prob. 2DAACh. 41 - Prob. 3DAA
Ch. 41 - Prob. 4DAACh. 41 - A male attains an erection when ___ . a. muscles...Ch. 41 - Prob. 9SQCh. 41 - Prob. 10SQCh. 41 - Prob. 11SQCh. 41 - Match each disease with the type of organism that...Ch. 41 - Prob. 13SQCh. 41 - Match each hormone with its source. ____ FSH and...Ch. 41 - Prob. 1CTCh. 41 - Fraternal twins are nonidentical siblings that...Ch. 41 - Some sperm mitochondria enter an egg during...
Additional Science Textbook Solutions
Find more solutions based on key concepts
2. Why is it that the range of resting blood pressures of humans is best represented by a bell-shaped curve co...
Human Biology: Concepts and Current Issues
What are the cervical and lumbar enlargements?
Principles of Anatomy and Physiology
What are the cervical and lumbar enlargements?
Principles of Anatomy and Physiology
2. Define equilibrium population. Outline the conditions that must be met for a population to stay in genetic e...
Biology: Life on Earth
The appearance of glucose in the urine a. occurs normally. b. indicates the presence of kidney disease. c. occu...
Human Physiology
11. In the early 1800s, French naturalist Jean Baptiste Lamarck suggested that the best explanation for the rel...
Campbell Biology: Concepts & Connections (9th Edition)
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
- Match the stage of mitosis with the following key events.arrow_forwardWhy is cell furrowing important in cell division? If cytokinesis did not occur, what would be the end result?arrow_forwardWhich of the following does not occur during interphase? (a) (b) (c) (d) DNA is replicated. Spindle fibres form. New organelles are formed. The cell size increases.arrow_forward
- In Xenopus, one of the substrates of mitotic CDKs is the phosphatase Cdc25. When phosphorylated by mitotic CDKs, Cdc25 is activated. What is the substrate of Cdc25? How does this information help to explain the rapid rise in mitotic CDK activity as cells enter mitosis?arrow_forwardThese types of proteins are responsible for all the following events during cell division: movement of "chromosomes" to poles, sliding of non-kinetochore microtubules pushing the two ends of the cell apart, and also the production of the cleavage furrow during cytokinesis. They are called _ _ (two words)arrow_forward(a) the cell cycle is divided into different phases (referred to as M, G0, G1, S and G2); Can you account for what happens during the different parts of the cycle and out of it is checked? ( b) What is the difference between apoptosis and necrosis? ( c) What are caspases and what is their function in the cell?arrow_forward
- The protein Tau promotes formation of axonal microtubules, stabilizes them, and drives neurite outgrowth. As demonstrated, (at least some kinds of) reversible phosphorylation of this protein can lead to it separating from the microtubules. What would be the "point" of a microtubule-associated protein that can be made to lose its ability to bind microtubules? Please answer asap and type your answer and do not copy from anywhere please ?arrow_forwardSperm and eggs have one-half the number of chromosomes of the somatic cells that divided to form them. Are sperm and eggs formed by mitosis? Explain.arrow_forwardThe end result of mitosis and cytokinesis is A) two cells, each with half the number of chromosomes as the mother cell B) three cells, one of which is twice the size of the other two C) two cells identical in size and genetic material D) two cells identical in genetic material, but one is smaller than the otherarrow_forward
- Amount of DNA per nucleus over the cell division cycle. At which point in the accompanying figure does MPF reach its highest activity during the cell division cycle? a) I b) II c) III d) IVarrow_forwardWhich of the following is NOT correct answer about telophase of mitosis: The mitotic spindle is formed in this phase Two new nuclei form, and two sets of chromosomes Nuclear membrane and nucleoid reappear in this phase The enzyme aminoacyl TRNA synthetase charges the TRNA molecules with the correct amino acids FRNA molecules with the correct amino acids MRNA molecules with the correct amino acidsarrow_forwardMitosis differs from meiosis in the following ways EXCEPT:(a) Mitosis results in a full complement of chromosomesin two cells, whereas meiosis results in four cells havinghalf the number of chromosomes.(b) In mitosis, all chromosomes are replicated, whereas inmeiosis, only half are replicated.(c) Mitosis only occurs in somatic or body cells, whereasmeiosis occurs in production of gametes or sex cells.(d) None of the above.(e) a and c onlyarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY