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7th grade science > UNIT 4: GENETICS > Flashcards

UNIT 4: GENETICS Flashcards

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Biology 101 flashcards
1
Q

Ancestor

A

A person from whom one is descended from.

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2
Q

Descendant

A

A person, plant, or animal that is descended from a particular ancestor.

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3
Q

Asexual reproduction

A

Genetic material is donated from only one parent; offspring are identical to the parent and each other (uniform)

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4
Q

Chromosome

A

Made of DNA located in the nucleus; contains genetic information needed to carry out functions and make new cells.

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5
Q

Allele

A

One of two or more genes that may occur on a chromosome.

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6
Q

Diverse Offspring

A

Different combinations of alleles from each parent.

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7
Q

Uniform Offspring

A

Offspring are identical to the parent.

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8
Q

DNA

A

Located in the nucleus; determines the genetic traits of an organism (deoxyribonucleicacid)

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9
Q

Gene

A

A segment of DNA found on a chromosome; determines the inheritance of a particular trait

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10
Q

Heredity

A

The passage of genetic instructions from one generation to the next.

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11
Q

Genetics

A

The study of heredity and the variation of inherited characteristics.

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12
Q

Sexual Reproduction

A

Genetic material is donated from 2 parents, offsprings differ from each parent and each other

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13
Q

Traits

A

Behavioral characteristics or physical attributes of an organism that are expressed by genes and/or influenced by the environment

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14
Q

Heterozygous

A

If an individual carries 2 different genres for a trait

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15
Q

Homozygous

A

If an individual carries the same 2 alleles for a gene

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16
Q

Dominate Trait

A

Inherited characteristic that appears in an offspring if it is contributed from a parent through a dominate allele

17
Q

Recessive Trait

A

A trait that is expressed when an organism has 2 recessive alleles

18
Q

Genotype

A

The genetic constitution of an individual organism

19
Q

Phenotype

A

The set of observable characteristics of an individual resulting from the interaction of its genotype with the environment

20
Q

Punnet Square

A

Used to calculate and depict all the combinations of the different genotypes and phenotypes among the offspring

7th grade science (1 decks)

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