Term
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Definition
| asexual reproduction. offspring identical to parent in genetic material and size. done by bacteria |
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Definition
| offspring identical to parent |
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Term
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Definition
| offspring different from parent. variation present |
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Definition
| asexual reproduction in plants without flowers. examples include cutting and grafting |
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Term
| what type of reproduction is mitosis |
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Definition
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Term
| what type of cells reproduce by mitosis |
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Definition
| body cells (somatic cells) |
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Term
| how does offspring compare to parent when it reproduces by mitosis? |
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Definition
identical
2n-->2n
46 chromosomes-->46 chromosomes |
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Term
| what type of reproduction is meiosis? |
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Definition
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Term
| what type of cells reproduces by meiosis? |
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Definition
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Term
| what happens to the number of chromosomes when sex cells are produced? |
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Definition
they are half the number of the parent
2n-->n
46-->23 |
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Term
| if an alligator has 24 chromosomes in its body cell. how many chromosomes will it have in its sex cell? |
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Definition
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Term
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Definition
| produces estrogen and egg cells |
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Term
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Definition
| where fertilization takes place |
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Definition
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Definition
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Definition
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Definition
| produces testosterone and sperm |
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Term
| how does developing zygote grow and develop? |
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Definition
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Term
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Definition
| hallow ball of cells. undifferentiated stem cells. |
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Term
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Definition
has 3 layers that have specific jobs
ectoderm: becomes skin
mesoderm: becomes muscle, blood, and bone
endoderm: becomes organs |
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Term
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Definition
| cells get a specific job. |
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Term
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Definition
| where diffusion of materials between mom and baby take place |
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Term
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Definition
| removal of amniotic fluid containing some of baby's cells |
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Definition
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Term
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Definition
| extra chromosome at #21. mental retardation and decreased cognitive ability |
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