During the life cycle of animals, gametes are produced when meiosis occurs. Why must gametes be...
During the life cycle of animals, gametes are produced when meiosis occurs. Why must gametes be produced by mitosis during the plant life cycle?
Homework Answers
In case of haplodiplontic life cycle, gametes are not produced as a result of meiotic division. In plants, gametes are developed by the process of mitosis, which after fertilization develops into diploid zygote. In plants, there is an alternation among haploid and diploid generations.
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During the life cycle of animals, gametes are produced when
meiosis occurs. Why must gametes be...
Question 1: Please consider gametes in animals. Part a. Are gametes diploid or haploid, and what...
Question 1: Please consider gametes in animals. Part a. Are gametes diploid or haploid, and what process (mitosis or meiosis) forms them? Sketch this process and include this labeled drawing in your submission. Remember that your drawing must not be an exact copy of a published figure, although you may use a published figure as a guide if you reference it. Part b. What occurs when two gametes unite, and what is the ploidy of the resulting zygote? Through which...
growth -Interphase 7 In plants, . (Circle the correct answer.) a. the life cycle is different...
growth -Interphase 7 In plants, . (Circle the correct answer.) a. the life cycle is different from that of animals in that plants alternate between diploid and haploid forms b. meiosis occurs in the ovary of female plants and male gametes are produced in the anthers of flowers c. there are two distinct phases: n sporophyte generation and 2n gametophyte generation e. both a and c 8 What are polar bodies? What are they used for? A a small haploid...
When does DNA replication occur in the cell cycle? mitosis cytokinesis O meiosis both mitosis and...
When does DNA replication occur in the cell cycle? mitosis cytokinesis O meiosis both mitosis and meiosis sphase of interphase A hermaphroditic worm would create gametes with what type of cell division? mitosis none of these synapsis O meiosis
What is true about the life cycle of a land plant? 1. The gametophyte produces spores...
What is true about the life cycle of a land plant? 1. The gametophyte produces spores by meiosis. 2. The life cycle is entirely haploid, so the sporophyte phase does not exist. 3. The sporophyte produces spores by mitosis. 4. The sporophyte produces spores by meiosis. 5. The gametophyte produces gametes by meiosis.
Does meiosis occur in the cell cycle? i am confused because if the cell cycle is...
Does meiosis occur in the cell cycle? i am confused because if the
cell cycle is represented as the image below, then when/where does
meiosis occur?
The Cell Cycle Interphase Synthesis period when the DNA is replicated and chromosome Gap 2 is duplicated period of cell growth, prepares for mitosis Gap 1 - period of cell growth, normal metabolism, duplication of organelles metaphase prophase telophase anaphase Checkpoint Mitosis Checkpoint Final checkpoint during mitosis 2 new cells produced and each can...
40. Why is the process of meiosis, which halves the number of chromosomes when producing gametes,...
40. Why is the process of meiosis, which halves the number of chromosomes when producing gametes, essential? A.so as to prevent cancerous cells from growing B.so that cells can divide as an organism grows C.so that tissues can be replaced when damaged D.so that when the gametes fuse during fertilization, a full complement of chromosomes are present
Why must all sexually reproducing organisms have both mitosis and meiosis in their life cycles? In other words, what is...
Why must all sexually reproducing organisms have both mitosis and meiosis in their life cycles? In other words, what is the purpose of meiosis AND what is the purpose of mitosis and how are they different? Without sexual reproduction evolution would be extremely slow. Why ? And what stage and steps in meiosis are so important to the genetic variation within a species?
4. Complete the following table. Mitosis Meiosis MitosisMeiosis Synapsis (Yes or no Crossing over (When) Anaphase...
4. Complete the following table. Mitosis Meiosis MitosisMeiosis Synapsis (Yes or no Crossing over (When) Anaphase I results When do centromeres divide No. of divisions No. of cells resulting Anaphase II results No. of chromosomes in daughter cells Assume cell divisions are occurring on the arrows in this gen- eralized plant life cycle. Show where mitosis and meiosis occur. 5. Multicellular diploid plant Spore Multicellular haploid plant Starting with a diploid cell (A) that has 2 homologous chromo- somes (2N-2),...
What is the principle of segregation? a) the random distribution of alleles to the gametes that...
What is the principle of segregation? a) the random distribution of alleles to the gametes that occurs when genes are located on different chromosomes b) each offspring will be a diploid c) each gene has two alleles d) chromosomes, not genes, get passed during mitosis and meiosis e) the homologous chromosomes separate during anaphase I of meiosis, leading to gametes with one copy of each gene
1. During meiosis when crossing over occurs in a paracentric inversion loop, what percent of the...
1. During meiosis when crossing over occurs in a paracentric inversion loop, what percent of the meiotic products will result in nonviable gametes? (0.5 points) a. 0% b. 25% c. 50% d. 75% e. 100%
growth -Interphase 7 In plants, . (Circle the correct answer.) a. the life cycle is different from that of animals in that plants alternate between diploid and haploid forms b. meiosis occurs in the ovary of female plants and male gametes are produced in the anthers of flowers c. there are two distinct phases: n sporophyte generation and 2n gametophyte generation e. both a and c 8 What are polar bodies? What are they used for? A a small haploid...
When does DNA replication occur in the cell cycle? mitosis cytokinesis O meiosis both mitosis and meiosis sphase of interphase A hermaphroditic worm would create gametes with what type of cell division? mitosis none of these synapsis O meiosis
Does meiosis occur in the cell cycle? i am confused because if the
cell cycle is represented as the image below, then when/where does
meiosis occur?
The Cell Cycle Interphase Synthesis period when the DNA is replicated and chromosome Gap 2 is duplicated period of cell growth, prepares for mitosis Gap 1 - period of cell growth, normal metabolism, duplication of organelles metaphase prophase telophase anaphase Checkpoint Mitosis Checkpoint Final checkpoint during mitosis 2 new cells produced and each can...
4. Complete the following table. Mitosis Meiosis MitosisMeiosis Synapsis (Yes or no Crossing over (When) Anaphase I results When do centromeres divide No. of divisions No. of cells resulting Anaphase II results No. of chromosomes in daughter cells Assume cell divisions are occurring on the arrows in this gen- eralized plant life cycle. Show where mitosis and meiosis occur. 5. Multicellular diploid plant Spore Multicellular haploid plant Starting with a diploid cell (A) that has 2 homologous chromo- somes (2N-2),...
1. During meiosis when crossing over occurs in a paracentric inversion loop, what percent of the meiotic products will result in nonviable gametes? (0.5 points) a. 0% b. 25% c. 50% d. 75% e. 100%
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