Genetics Flashcards

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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 cell 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 genetics traits of an organism (deoxyribonucleic acid).

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9
Q

Gene

A

A segment of DNA found on 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 two parents; offspring differ from each parent and each other (diverse).

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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 two different genres for a trait (Aa)

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15
Q

Homozygous

A

If an individual carries the same two Alleles for a gene (AA or aa).

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16
Q

Dominant Trait

A

inherited characteristic that appears in an offspring if it is contributed from a parent through a dominant allele.

17
Q

Recessive Trait

A

a trait that is expressed when an organism has two 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.