Science 8, Chapter 3, Test Flashcards Preview

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Flashcards in Science 8, Chapter 3, Test Deck (10)
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1
Q

What is a Pedigree?

A

A pedigree is a diagram that shows the occurrence of a genetic trait in several generations of a family

2
Q

What is Heredity?

A

Heredity is the passing of genetic traits from parents to offspring

3
Q

What is a Dominant Trait?

A

A dominant trait is a trait observed in the first generation when parents that have different traits are bred

4
Q

What is a Recessive Trait?

A

A recessive trait is a trait the reappears in the second generation after disappearing in the first generation when parents with different traits are bred

5
Q

What is an allele?

A

An allele is one of the alternative forms of an organism;

6
Q

What is a phenotype?

A

The phenotype is the organism’s appearance of other detectable property or characteristic

7
Q

What is a genotype?

A

A genotype is the entire genetic makeup of an organism;

Also the contribution of genes for one or more specific traits

8
Q

What is probability?

A

the likelihood that a future event will occurring in an giving instance of an event

9
Q

Why are self-pollinating and cross-pollinating pea plans important?

A

Self-Pollinating- to avoid cross pollination disorders

Cross-pollinating- to determine dominant and recessive traits

10
Q

What is a sex chromosome?

A

A sex chromosome is a chromosome that determines the se of an individual