{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Ch 11 The Basic Principles of Heredity pg 2

Ch 11 The Basic Principles of Heredity pg 2 - Alleles...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
2. first filial generation or F(1) generation = the offspring of crossing plants 3. Second filial generation or F(2) generation = from a cross between F1 individuals or by self pollination of F1 individuals 4. Discovery of dominant and recessive traits a. dominant- traits mask recessive ones when both are present in the same individual 5. Debunking blending inheritance a. discovery of dominance not consistent with blending inheritance [male and female gametes’ liquids blend during reproduction to pass onto offspring] b. two fluids blend = difficult to imagine how they separate c. Today, hereditary factors = Genes! I.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Alleles separate before gametes are formed; the principle of segregation A. Alleles- alternative forms of a gene Dominant allele- always expressed when it is present, regardless of it’s state Recessive allele- never expressed in a heterozygous state B. Principle of Segregation- before sexual reproduction occurs, 2 alleles carried by an individual parent must become segregated C. Recessive alleles are not lost and can occur in the F2 generation because of meiosis II. Mendel’s Model of Inheritance A. Alternative forms (alleles) of a “factor” (gene) account for variations in inherited traits....
View Full Document

{[ snackBarMessage ]}

Page1 / 2

Ch 11 The Basic Principles of Heredity pg 2 - Alleles...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon bookmark
Ask a homework question - tutors are online