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Why Do Organisms Look the Way They Do.
Terms in this set (29)
A complex molecule containing the genetic information that makes up the chromosomes.
threadlike structures made of DNA molecules that contain the genes
Transfer of pollon from male reproductive stucture to femal reproductive structure of a seed plant
the part of a stamen that contains the pollen.
The male reproductive part of a flower
Stigma (part of pistil)
Part of the pistil that is the tip of the pistil and is the location where pollination occurs
the stalk of a stamen
A flower structure that encloses and protects ovules and seeds as they develop.
A structure that develops within the ovary of a seed plant and contains the female gametophyte.
A trait that is not in your genes but is picked up from environmental factors.
A characteristic that is passed from parent to offspring.
A characteristic that an organism can pass on to its offspring through its genes.
differences in physical traits of an individual from the group to which it belongs
A diagram that shows the occurrence of a genetic trait in several generations of a family.
guidance for prospective parents on the likelihood of genetic disorders in their future children
sickle cell anemia
a genetic disorder in which erythroctyes take on an abnormal curved or "sickle" shape
a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.
cell division in which the nucleus divides into nuclei containing the same number of chromosomes
a mature haploid male or female germ cell that is able to unite with another of the opposite sex in sexual reproduction to form a zygote.
A reproductive process that involves two parents that combine their genetic material to produce a new organism, which differs from both parents
Process by which a single parent reproduces by itself
DNA segments that serve as the key functional units in hereditary transmission.
Any cells in the body other than reproductive cells
A change in a gene or chromosome.
An alternative form of a gene.
An organism's genetic makeup, or allele combinations.
An organism's physical appearance, or visible traits.
Describes a trait that covers over, or dominates, another form of that trait.
An allele that is masked when a dominant allele is present
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