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Science Chapter 4
Question | Answer |
---|---|
Which is an advantage of sexual reproduction? | Offspring with genetic variation are produced |
Which describes cells that have only one copy of each chromosome? | Haploid |
Which phase of meiosis I is shown in the diagram? | Prophase I |
Which phase of meiosis I comes after the prophase I? | Metaphase I |
Tissue culture is an example of which type of reproduction? | Cloning |
Which type of asexual reproduction is shown in the figure below? | Budding |
A bacterium can reproduce by which method? | Fission |
Which statement best describes which genetic variation is beneficial to populations of organisms? | Species can better survive environmental changes |
In which phase of meiosis II do sister chromatids line up along the center of the cell? | Metaphase II |
Describe Haploid cells | |
Haploid | A cell that contains a single set of chromosomes |
Describe a diploid cell | A cell that contains two copies of each chromosome |
Define cloning | Produces identical individuals from a cell or cluster of cells taken from a multicellular organism |
Define budding | A new organism grows by mitosis and cell division on the body of its parent. |
During MITOSIS the original cell produces two daughter cells. How many daughter cells will be produced if 250 mouse cells undergo MITOSIS? | 2 X 250 = 500 daughter cells |
During MEIOSIS the original reproductive cell produces four daughter cells. How many daughter cells will be produced if 250 mouse reproductive cells undergo MEIOSIS? | 4 X 250 = 1000 daughter cells |
Two reproductive cells undergo MEIOSIS. Each daughter cell also undergoes MEIOSIS. How many cells are produced when the daughter cells divide? | Cell 1 = D1 D2 D3 D4 4 + 4 + 4 + 4 = 24 daughter cells |
What stage of MEIOSIS does the drawing illustrate? | Anaphase II |
Which stage of meiosis takes place before anaphase II? | Metaphase II |
What type of asexual reproduction includes stolons? | Vegetative reproduction |
How many divisions of nucleus in a MEIOSIS and MITOSIS cell? | MEIOSIS = 2 MITOSIS = 1 |
How many daughter cells are produced in MEIOSIS and MITOSIS cells? | MEIOSIS = 4 MITOSIS = 2 |
Which results in genetic variation? | Sexual reproduction |
What is NOT true about homologous chromosomes? | They are identical |
If 12 reproductive cells undergo MEIOSIS, how many daughter cells will result? | 4 X 12 = 48 daughter cells |
Which is NOT true about sexual reproduction? | Offspring have no genetic variation |