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Reproduction
Asexual and Sexual Reproduction
27
Biology
7th Grade
01/13/2014

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Term
Bacteria and other single celled organisms
Definition
Asexual reproduction is most common in these organisms.
Term
Asexual Reproduction
Definition
Results in offspring which are a genetic copy of the parent
Term
A disadvantage of Asexual Reproduction
Definition
No genetic diversity
Term
The type of asexual reproduction in bacteria
Definition
Binary fission
Term
The type of asexual reproduction in hydra
Definition
budding
Term
The type of asexual reproduction used to grow a new lizard tail or new arm of a sea star
Definition
Regeneration
Term
Diploid
Definition
A full set of chromosomes.  In humans, there are 46 in all cells exept sex cells.
Term
haploid
Definition
word meaning a cell contains half the number of chromosomes after undergoing meiosis
Term
gametes
Definition
specialized sex cells
Term
male gamete
Definition
sperm
Term
female gamete
Definition
egg or ovum
Term
male gamete in a flower
Definition
pollen
Term
fertilization
Definition
Joining of male and female gametes (sperm and egg)
Term
zygote
Definition
resulting cell after female and male gamete have fused.
Term
Genetic Variation
Definition
The advantage of sexual reproduction
Term
Body cells
Definition
All cells of an organism exept the sex cells.  These cells reproduce asexually through mitosis
Term
Sex cells
Definition
Male and female gametes which undergo meiosis to form a haploid cell.
Term
If an organism has 26 chromosomes in its body cells.  How many chromosomes are in its gametes?
Definition
13
Term
chromosome
Definition
A structure in the nucleus that contains hereditary material (genes).
Term
Vegetative Propagation
Definition
A type of asexual reproduction plants often use
Term
An advantage in sexual reproduction is genetic variation which helps an organism do this
Definition
Survive when faced with environmental change
Term
DNA
Definition
An organism grows and functions by following the information in this code
Term
Internal Fertilization
Definition
Increases the chance of gametes meeting
Term
Many gametes
Definition
Organisms which release gametes outside the body produce these to increase the chance of fertilization
Term
Increase survival chances
Definition
Organisms with longer gestation periods and care for offsping
Term
Whip-tale lizard
Definition
All organisms are females and reproduce asexually
Term
Red Kangaroo
Definition
Has a very short gestation period but lots of parental care
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