- The fruit fly, Drosophila melanogaster, has a total ofeight chromosomes (4 pairs) in each of its cells. Assume you are amicroscopist viewing different types of fruit fly cells, some ofwhich are undergoing mitosis and some of which are undergoingmeiosis. Draw what you would expect to see in these two types ofcells when they are at the stage of anaphase (mitosis) or anaphaseI (meiosis). Distinguish between paternal and maternal chromosomesby using different colors or different types of lines. Brieflydescribe what differences you note from the drawings between thesetwo types of cells.
Anaphase ofMitosis
and,
Anaphase I of Meiosis
- List the key differences between mitosis and meiosis.
- The fruit fly, Drosophila melanogaster, has a total ofeight chromosomes (4 pairs) in each of its cells. Assume you are amicroscopist viewing different types of fruit fly cells, some ofwhich are undergoing mitosis and some of which are undergoingmeiosis. Draw what you would expect to see in these two types ofcells when they are at the stage of anaphase (mitosis) or anaphaseI (meiosis). Distinguish between paternal and maternal chromosomesby using different colors or different types of lines. Brieflydescribe what differences you note from the drawings between thesetwo types of cells.
Anaphase ofMitosis
and,
Anaphase I of Meiosis
- List the key differences between mitosis and meiosis.
Related textbook solutions
Related questions
Question 10
A microscope image of a cell in interphase is treated with dyes to stain the nucleic acids (DNA and RNA). This image probably displays ______.
| visible nucleoli | ||
| separate visible chromosomes | ||
| visible spindle fibers |
1 points
Question 11
To observe plant cells undergoing mitosis, the best plant tissue to isolate would be ______.
| a section of the root tip | ||
| a section of the mature fruit | ||
| a section of the main stem |
1 points
Question 12
Owen observes a slide containing whitefish blastula sections. He finds a cell with visible spindle lines extending from two points on opposite sides of the cell and chromosomes as small black Xs halfway between the two poles. What stage of the cell cycle is Owen observing?
| anaphase | ||
| metaphase | ||
| prometaphase |
1 points
Question 13
What structural feature can you use to distinguish between DNA-stained onion cells in anaphase and telophase?
| Sister chromatids separate as anaphase ends and telophase begins. | ||
| The vesicles forming a cell plate appear around the onset of telophase. | ||
| The chromosomes are clustered at visible spindle poles during anaphase. |
1 points
Question 14
A carcinogen is any substance or environmental condition that ______.
| increases the frequency of mutation | ||
| causes direct damage to DNA | ||
| inhibits mitosis in cancer cells |
1 points
Question 15
Angelina observes a slide containing whitefish blastula sections. She finds a cell with visible spindle lines extending from two points on opposite sides of the cell and chromosomes as small black Xs halfway between the two poles. What intracellular structure forms each of the two points on opposite sides of this cell?
| a metaphase plate | ||
| a cell plate | ||
| a pair of centrioles |
1 points
Question 16
Which of the following best describes the relationship between interphase and the cell cycle?
| Interphase is a gap between rounds of cell division. | ||
| Interphase comprises a large majority of the cell cycle in almost all cells. | ||
| Interphase comprises a large majority of the cell cycle in slowly and non-dividing cells. |
Question 17
Radiation therapy and chemotherapy are cancer treatments that primarily attack cancer cells through ______.
| activating apoptosis in any rapidly dividing cells to kill off tumor cells | ||
| destroying the blood vessels in cancerous tumors to block the flow of nutrients | ||
| damaging DNA to the extent that cells die if they cannot repair the damage |
alkalosis homeostasis cryogenesis |
carbohydrates lipids nucleic acids |
water is adhesive water istransparent water expands when itfreezes |
reaction initiation activation |
cytoplasm mitochondria nucleus |
oxygen and sugars proteins and sugars carbon dioxide andoxygen |
pigments, products products, reactants elements, atoms |
ATP starch glycogen |
fats steroids amino acids |
Kreb's cycle acetyl-CoAformation electron transportchain |
fermentation the Kreb cycle the electron transportchain |
Cool the reactants. Decrease the pH. Add an enzyme(catalyst). |
nucleus mitochondria a cell membrane |
cell walls chromosomes mitochondria |
osmosis active transport passive transport |
ribosome mitochondrion cytoskeleton |
diffusion active transport passive transport |
lipids proteins carbohydrates |
neither take up water orlose water take up water andswell transport water into thecell by active transport. |
lipid storage DNA replication photosynthesis |
chromosome movementduring mitosis protein synthesis ATP production |
metaphase anaphase telophase |
metaphase anaphase telophase |
metaphase anaphase telophase |
Synthesis phase (S) G1 cytokinesis |
4 daughter cells, 5chromosomes each 2 daughter cells, 10chromosomes each 2 daughter cells, 5chromosomes each |
10 20 Not enough informationprovided |
the number of chromosomesallotted to each daughter cell must be halved sister chromatids must beseparated into different daughter cells it produces new arrays ofalleles on chromosomes and contributes to genetic diversity |
are in Interphase are in metaphase are undergoingMeiosis |
twice as many chromosomesas the original cell an independent assortmentof the original cell's chromosomes an identical copy of theoriginal cell's chromosome. |
A-C-A-G-C-C-G-T-A T-G-T-C-G-G-C-A-T U-G-U-C-G-G-C-A-U |
