Biology chap 9

States that factors separate INDEPENDENTLY of one another during the formation of Gamez

when pollen from a male flower is transferred to the female reproductive part of a flower

Lowercase letters refer to

the transmission of characteristics from parents to offspring is....

Plants that are true breeding

Describes the allele that is fully expressed when carried by a pair of homologous chromosomes

Neither allele is dominant or recessive, nor do the alleles blend in the phenotype (appearance)

Genetics is a branch of biology defined as....

One of the alternative forms of a gene that governs a characteristic, such as hair color

Between flowers of two different plants

When the two alleles in the pair are different

A _________ is a segment on a chromosome that controls a particular hereditary trait

Gregor Mendel was ....

A genetically determined variant of a characteristic

pollen from the flower anthers goes to stigma on the SAME FLOWER or A FLOWER ON THE SAME PLANT

one allele is completely dominant over another

These occur in pairs

States that a pair of factors separated during the formation of gametes

The parents that were produced though true-breeding (were created through self pollination)

a trait expressed only when 2 recessive alleles for the same characteristic are inherited

What is a punnets square used for

plants that are true breeding

The offspring of the P generation that was crossed pollinated

When both alleles of a pair are alike

Chromosomes are threadlike structures made up of _________

= # of times an event is EXPECTED TO HAPPEN / # of times an event COULD HAPPEN

When offspring have a phenotype (appearance) in between that the parents

The Offspring produced by the F1 generation through self pollination

Mendel’s factors are

Capital letters refer to

Gregor Mendel discovered ...

When both alleles for a gene are expressed in a heterozygous offspring

Describes an individual that has identicle alleles for a trait on both homologous chromosomes

When only one characteristic is tracked

Describes an individual that has two DIFFERENT alleles for a trait

A trait that masks or dominates another trait in the pair of alleles

Gregor Mendel studied ...

Chromosomes, _______occur in pairs

cross a unknown genotype w/ a homozygous recessive individual to determine the unknown genotype

At thread-like structure made up of DNA

Are genetically determined variantof a characteristic

A cross in which two characteristics or tract

A gene is a segment on a chromosome that controls particular _______ ______

An organisms appearance

A trait not observable in a organisms appearance when the trait is paired with a dominant trait

An organisms genetic make up

science of Heredity and of the mechanisms by which traits are pass from parents to offspring