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Slide Notes

The passing of traits from parent to offspring
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Science Words

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PRESENTATION OUTLINE

HEREDITY

The passing of traits from parent to offspring

DOMINANT TRAIT

The trait observed when at least one dominant allele{gene} of characteristic is inherited

RECESSIVE TRAIT

A trait that is apparent only when two recessive alleles [gene] for he same trait are inherited
Photo by Ingrid Taylar

GENES

(in informal use) a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring

ALLELE

one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Photo by Vilseskogen

PHENOTYPE

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

the genetic constitution of an individual organism.

CHROMOSOME

Coiled structure does dna found in the nucleus you have 23 pairs of them

HETEROZYGOUS

A genotype with 2 different alleles
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HOMOZYGOUS

A genotype with 2 of the same alleles

SEX CELLS

A egg or sperm cell. It carry’s half the number of chromosomes as other cell types
Photo by NIAID

PUNNIT SQUARE

The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach. The diagram is used by biologists to determine the probability of an offspring having a particular genotype.
Photo by postoffis