Study Guides (248,397)
Canada (121,509)
Biology (1,527)
Midterm

Pre-Midterm Key concepts.doc

8 Pages
202 Views
Unlock Document

Department
Biology
Course
Biology 3592A
Professor
Brenda Murphy
Semester
Fall

Description
Principles of Human GeneticsLinearcircular chromosomes inside nucleusmitochondriaStored as genes through gene expressionmeiosis gametesChromatinfound inside cell75 Protein375 Histones H1 H2A H2B H3 H4organization of nucleosomescompaction of DNA375 Non Histones enzymes gene regulation proteins15 DNA 10 RNAHaploid Human Genome 3 x 109 nucleotide base pairs 33 uniquesingle66 repetitive30 000 genes Chromosomes are grouped into linear nuclearcircular mitochondrialo22 autosomes2 sex chromosomeso5050 inheritance from motherfatheroMitochondrial165 kb of DNA smaller than nuclearoMaternally inherited mitochondria in eggsperm tail energy when fertilization occurs only the head of sperm penetrates the egg and the tail is lostno paternal mitochondria entersGametes nSomatic 2nCell grows with cycle Interphase mitosismitosisnew identical daughter cellssomatic cellsPMAT prophaseprometaphasemetaphaseanaphasetelophaseCell cycleInterphasereplicated chromosome G1 S G2MitosisPMATMeiosis gametes also go through mitosis to growP LZPDD MAT MAToProphase Leptotene unpaired with tightly bound sister chromatidsZygotene maternalpaternal homologous pair Pachytene crossing over occurs different allelesDiplotene homologs separate but held by chiasmataDiakinesisLaw of segregation alleles of same trait separated into different gametesLaw of independent assortment alleles of different traits separated into different gametes 84 million different ways 23 chromosomes pairs separateLinked genes close together travel together through meiosis Meiosis I Pachytenecrossing over between maternal and paternal homologsvariation genetic diversity Results 2 parental2 recombinantsOn average each chromosomes23 cross over
More Less

Related notes for Biology 3592A

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit