unit 5/6

23 from Mom, 23 from dad = total

how many chromosomes in total do you inherit from each parent?

there are 2, haploid

at the end of meiosis 1, how many cells are there and are they diploid or haploid

4, haploid

at the end of meiosis 2 how many cells are there and are they diploid or haploid

prophase 1

in what phase of meiosis can crossing over happen

mitosis

dead or damaged cells are replaced by the process of what

2 diploid

in mitosis- how many cells are there

sister chromatids

during metaphase of mitosis and metaphase 2 of meiosis, you are dividing chromosomes into what?

expressed

if you have a dominant gene, is that expressed or nonexpressed

homogulous pairs

what separates during meiosis 1

Mom (sex linked=x chromosome)

if you have a sex linked disorder, where are chromatids inherited from

a karyotype shows the chromosome number, size, shape, and structure of an individual’s genetic material.

what does a karyotype show?

None (she has healthy x chromosomes)

if a woman who does not carry colorblindness, has children with a man who does carry colorblindness what is the percent that the children will be colorblind?

22

how many pairs of autosomal chromosomes do we have?

XX / XY

what are the sex chromosomes for female and male?

23

sex cells have how many unpaired chromosomes?

yes

is smoking considered a chemical agent that can cause mutations in dna?

during meiosis, homogulous pairs do not split correctly. 

what is nondisjunction?

Extra copy of chromosome 21 (trisomy)(autosomal)

down syndrome is caused by what?

47 chromosomes

if a person is trisomy, whats their karyotype?

Males

whos effected by klinefelter syndrome?

XXY

if a male has klinefelters syndrome, what are their sex chromosomes?

XO

if a female has turners syndrome, what is their sex chromosomes?

No

is hemaphilia a trisomy disorder?

Cutaneous

what kind of membrane is the skin ?

Synovial fluids

what does a synovial joint have that other joints don’t have?