science

what is meiosis

the making of gameats.
what is mitosis

the making of cells.
which makes identical daughter cells, meiosis or mitosis.

mitosis
which prosses makes the sperm and egg, meiosis or mitosis

meiosis
if the genotypes for each arent are Pp and pP what percent of the offspring will have PP

25% will have PP
what does homozygous domonate look like

PP
how is it possable for two healthy-seeming parents to have a child with tay sachs disease

The parents must be heterozygous and have the rececive allele for the disease.
how do parents pass on genes to a child?

they genes through gameats.
what is the cod for a girl.

XX
what is the code for a boy

XY
what is the rcecive genotype for freckles?

ff
how does meiosi make sure they hav hlaf the amout of chromosomes

they have pairs line u at the equater
what is a pair of chromosomes that have the same genes anfd structure called.

homologous pair
how many alleles for each gene does an organism?

2
what is a gene

a small section of DNA that codes for a trait.
what is the phenotype

the way the genotype shows up.
what is an allele

the different forms a gene can have
what is heredity

the passing of traits from parent to offspring
what is a gameat

the way parents pass down DNA that are in the forms of a sprm and egg
what are sex chromosomes

they are chromosomes that determine the x of the offspring
what is a rececive trait

a trait that is only presant when there is no domonate allele

Author

Anonymous

52259

Card Set

science

Description

21 flash cards

Updated

2010-11-30T00:37:29Z