Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

sexual reproduction results in what?

genetic variability, or diversity, which is important to the survival of species


sex cell reproduce

haploid gametes

egg and sperm cells


genetic make up, what is inherited from parents


units of inheritance


genes own specific location on a chromosome


condensed genetic material

how many chromosomes does every cell have?

2 copies

how many chromosomes does every sex cell have?

1 copy


copy of a chromosome


each allele holds a different version of the same genetic material


where a pair of chromosomes is joined together

how many chromosomes does a human have?

23 pairs


22 pairs of chromosomes, determine how your body is made


genetic expression of your genes


genetic make up tells about you


which genes are more likely to be expressed


traits need 2 copies in order for it to be expressed

homozygous genotype

receive same type of gene from both parents

heterozygous genotype

receive one dominant gene from one parent and one recessive gene from the other

homozygous dominant

inherit dominant genes from both parents

homozygous recessive

inherit recessive genes from both parents

punnett squares

used to asses genotype of offspring or determine probability of having a certain phenotype

sex chromosomes

determine if you will be male or female

what are the female chromosomes?


what are the male chromosomes?


down syndrome

due to a mutation in which there are 3 copies of chromosome #21

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 and try again


Reload the page to try again!


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

Voice Recording