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Study guide for genetics
Study guide for genetics
13
Science
7th Grade
12/01/2010

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Cards

Term
What is the genetic code?
Definition
the order of nitrogen bases along a gene
Term
Where does protein synthesis take place?
Definition
on the ribosomes in the cytoplasm of the cell
Term
A mutation is harmful to an organism if it
Definition
reduces the organism's chances for survival and reproduction
Term
When sex cells combine to produce offspring, each sex cell will contribute
Definition
half the normal number of chromosomes.
Term
True or False
A mutation in a sex cell can be passed to offspring.
Definition
True
Term
True or False
The sex cells produced by meiosis have twice the number of chromosomes as the parent cells.
Definition
False
Term
What did Gregor Mendel do to study different characteristic in his genetics experiments?
Definition
He cross-pollinated plants.
Term
Walter Sutton discovered that the sex cells of grasshoppers have exactly
Definition
half the number of chromosomes found in the body cells.
Term
What is the probability of producing a tall plant from two hybrid tall plants?
Definition
three in four
Term
factors that control traits
Definition
genes
Term
the different forms of a gene
Definition
alleles
Term
refers to physical characteristics that are studied
Definition
traits
Term
True or False
Chromosomes carry genes from parents to offspring
Definition
True
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