To visualize and identify meiotic cells at metaphase I with a microscope, what would you look for? O a. sister chromatids of a replicated chromosome grouped at the poles O b. individual chromosomes all at the cell's center O c. an uninterrupted spindle array Od. pairs of homologous chromosomes all aligned at the cell's center

To visualize and identify meiotic cells at metaphase I with a microscope, what would you look for? O a. sister chromatids of a replicated chromosome grouped at the poles O b. individual chromosomes all at the cell's center O c. an uninterrupted spindle array Od. pairs of homologous chromosomes all aligned at the cell's center

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter6: Reproduction At The Cellular Level

Section: Chapter Questions

Problem 1ACQ: Figure 6.4 Which of the following is the correct order of events in mitosis? a. Sister chromatids...

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QUESTION 7 Match the event that happens in meiosis with how we simulated it in this lab. gred and yellow bead strands of the same length that looked like an Jx attached to each other with magnets red and yellow bead strands moved together towards a pole instead of breaking apart and moving to opposite poles A. DNA replication B. tetrad formation bead strands could be arranged so that either the red or the yellow beads were above or below the middle of the cell C. crossing over single bead strands had another bead strand added to it attached by a magnet (ex. a long yellow strand had another long yellow strand added so it no longer looked like a single strand but more like an X) D. random alignment E. nondisjunction white paper was cut through F. cell division 4 yellow beads were popped off the bottom of a yellow strand and 4 red beads from an adjacent red strand and the opposite colors were joined (eg. yellow got snapped onto red and red onto yellow)
Question 29 Which of the following is not characteristic of Metaphase Il of meiosis? O Sister chronatids are aligned on the metaphase plate. O Each cell is haploid. O There are half the number of tetrads as there were in Metaphase L O Each chromosome is comprised of two sister chromatids. Question 30 A drug that prevents would have a deleterious effect on the moverment of chomosomes during anaphase? O'shortening of mierotubules O nuclear chvelop breakdown 2 elongation of microtubules O førmåtion of centrosomes
QUESTION 1 Consider a diploid species with a diploid number of 30. Show your work and/or explain logic on all parts. 2 How many chromatids would be found in a cell that is in Prophase II of meiosis? b fatpical dplod cel,in G of the cell cycle, from this species contains DNA with a mass of 10 picograms, how many picograms of DNA would be in a bypical gamete? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUSParagraph Arial 14px In !!!
QUESTION 7 Match the stage of mitotic cell division with its description. chromosomes line up in the middle of the cell on spindle fibers cytoplasmic division results in two new cells A. interphase sister chromatids separate and daughter chromosomes begin moving to gopposite poles B. anaphase C. telophase nuclear membrane disintegrates, DNA condenses, spindle highways begin to D. metaphase be formed E. prophase F. cytokinesis daughter chromosomes arrive at opposite ends of the cell, the cell membrane pinches in, nuclear membranes form DNA replication and organelle doubling
What occurs during the stage of meiosis shown here? Question 19 options: A The chromosomes, each with two sister chromatids, line up across the middle of the cell. B homologous pairs separate and move to opposite poles of the cell C Sister chromatids separate and move to opposite poles of the cell; the nuclear membrane forms around the chromosomes. D The nuclear membrane dissolves, and the spindle fibres begin to form. E The second nuclear division is completed, and the second division of cytoplasm follows.
QUESTION 40 What is the driving force to separate the sister chromatids during Anaphase A of mitosis? A. Loss of microtubule subunits from the plus ends of the kinetochore microtubules B. Addition of microtubules at the plus ends of the chromosomal microtubules. C. Loss of microtubule subunits from both ends of the astral microtubules. D. Addition of microtubule subunits at the plus ends of the overlap microtubules.
QUESTION 8 Match the stage of meiosis to its description. Watch for "cell" versus "cells". Singular versus plural is a clue that will help you pick the right roman numeral. homologous chromosomes line up next to each other as tetrads along the mid- line of the cell DNA condenses, tetrads form as homologous chromosomes come together and exchange DNA parts in crossing over, nuclear membrane disintegrates A. Early Interphase B. Late Interphase one of each homologous pair reaches the end of the cell, new nuclear membranes form, and the cell membrane begins to pinch in C. Prophase I v DNA condenses in two cells, nuclear membranes disintegrate D. Metaphase I the copies of the chromosomes (daughter chromosomes formerly known as sister chromatids) split apart and move towards the ends of two cells E. Anaphase I v the cell divides into two cells, chromosomes decondense F. Telophase I G. Interkinesis tetrads separate and homologous chromosomes begin to move in opposite directions in a cell H.…
69_1&course_jd * Question Completion Status: w. co A C D Using these pictures, match the pictures to their correct stage. - V Picture A A. Anaphase - v Picture B B. Prophase - v Picture C C. Telophase Picture D D. Interphase Picture E E. Metaphase Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save Al MacBook 000 000 DII F1 F2 F3 F4 F5 F6 F7 F8 @ # $ 2 4 Q W E T < O w/
QUESTION 4 Match the mitotic cell division stage to its description. chromosomes randomly attach to spindle fibers across the middle of the cell the cell membrane pinches in, two new nuclear membranes form around daughter chromosomes that have reached the ends of the cell A. late interphase B. prophase DNA is in chromatin form and unduplicated in a single cell C. early interphase DNA is as chromatin and unduplicated as cytoplasm divides one cell into two Jequal cells D. anaphase DNA and organelles are double the amount of a regular body cell E. cytokinesis daughter chromosomes are moving along spindle fibers towards opposite Jends of the cell F. metaphase G. telophase the nuclear membrane is disintegrating, centrioles begin building spindle fibers, DNA condenses
Question 3 of 10 Question 3. In a cell that has been arrested prior to metaphase due to a single unaligned chromosome, which kinetochores contain the Mad2 protein? the kinetochores of every chromosome except the one that is unaligned а. b. the kinetochores of any unaligned chromosomes С. the kinetochores of all of the chromosomes d. the kinetochores of all of the sex chromosomes
D. centromere QUESTION 8 Match the stages of mitotic cell division to the descriptions of those stages. v chromosomes attach to spindle fibers across the middle of the cell chromosomes are not yet duplicated so chromosomes only look like a line, only one pair of centrioles in cell A. Telophase cell membrane is pinching in forming a peanut-shaped cell, daughter v chromosomes reach the poles and new nuclear membranes are forming around them B. Late Interphase C. Early Interphase the nuclear membrane is breaking down, chromosomes are |condensing, centrioles are building microtubule "highways" (spindle fibers) D. Metaphase E. Anaphase chromosomes are duplicated so chromosomes look like an "X", two pairs of centrioles and double the amount of organelles fill the cell F. Prophase v cell is dividing into two identical cells G. Cytokinesis daughter chromosomes are beginning their migration to the poles on spindle fibers QUESTION 9 How do the two cells formed by a mitotic cell division compare…
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?