Chapter 9 Modern Biology (Holt, Rinehart and Winston)

24 terms by erinsuckka 

Create a new folder

Advertisement Upgrade to remove ads

Unit 3 Genetics and Biotechnology Chapter 9 Fundamentals of Genetics

Genetics

a feild of biology devoted to understanding how characteristics are transmitted from parents to offspring

Heredity

the transmission of characteristics from parents to offspring

Trait

genetically determined vanant of a characteristic, such as yellow flower colors

Pollination

pollen grains produced in the male reproduction parts of a flower

Self-Pollination

pollen is transferred from the anthers of a flower of the stigma

True-Breeding

pure for a trait always produce offspring with that trait when they self-pollinate

P Generation

true-breeding parents

F1 Generation

offspring of the P generation the first full filial generation

F2 Generation

offspring of the second filial generation

Dominant

factor because it masked , or dominated, the factor for the other trait in the pair

Recessive

the trait did not appear in the F1 generation but reappeared in the F2 generation

Law of Segregation

states that factors separate independently of one another during the formation of gametes

Allele

each of two of more alternative form of gene

Genotype

an organisms genetic makeup

Phenotype

an organisms appearance

Homozygous

both alleles of a pair are alike, the organisms is said to be; dominant

Heterozygous

when two alleles in the pair are different; recessive

Monohybird Cross

a cross in which only one characteristic is tracked

Punnet Square

diagram to aid them in predicting the probable distribution of inhered traits in the offspring

Test Cross

an individual of unknown genotype is crossed with a homozygous recessive individual

Complete Dominance

a relationship, one allele was completely dominant over another

Incomplete Dominance

the F1 offspring will have a phenotype in between that of the parents

Codominance

occurs when both alleles for a gene are expressed in a heterozygous offspring

Dihybird Cross

is a cross in which two characteristics are tracked

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set