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22 Cards in this Set
- Front
- Back
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What are chromosomes? |
Small tightly coiled pieces of DNA become visible cell division identical halves of a duplicate chromosome. |
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What is the purpose of centromere? |
to attach two sister chromatids.
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What are homologous chromosomes? |
chromosomes of similar size, shape and content, one from each parent |
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How many chromosomes will you find in a body cell? |
46 |
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How many chromosomes will you find in a sex cell? |
23 |
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what are autosomes? |
any chromosome that is not a sex chromosome: Body cells |
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what is another name for a male sex cell? |
sperm |
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what is another name for a female sex cell? |
ovum or egg |
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what is another general name for sex cells? |
gametes |
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Name the process that makes male sex cells? |
spermatogenesis |
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Name the process that makes female sex cells? |
oogenesis |
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What letters represent a male organism? |
xy |
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What letters represent female organism? |
xx |
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In a gamete how many autosomes and sex chromosomes are present? |
4 |
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Why do we need chromosomes in our cells? |
because they contain the genetic information for an organism.
helps repair old cells identically, and helps a species continue. |
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Do you find chromosomes in mitosis and meiosis? |
yes |
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name the five steps of the cell cycle and describe each one? |
1. Gap O: resting phase, whole cell has stopped dividing 2. Gap 1: cells increase in size 3. S: DNA replication occurs 4.G2: Cell continues to grow 5. M: orderly division into two daughter cells. |
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What phase of the cell cycle do cells spend most of their time in? |
G phase, G Zero |
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in cytokinesis plant cells form a new? |
a cell plate (that divides the plant in two, creating two cell instead of one) |
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What happens to the cell after cytokinesis? |
It divides in two and a new cell is born |
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what are somatic cells and how many chromosomes do they contain? |
any cell of a living organism other than the reproductive cells. They have 46 chromosomes |
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put your cell pictures and all the phases on your study card that you can use on the test |
Good Luck :) |
