Notes
Notes - notes.io |
xx= female xy= male
II. Sex-linked traits
A. First discovered by T. Morgan in fruit flies in 1910 (Drosophila melanogaster)
B. He figured out that the gene for white eyes was carried on the X chromosome
-Gene Linkage
Thomas Hunt Morgan noticed that some traits appeared to be inherited together (gene linkage)
- concluded that chromosomes, not genes sort independently during meiosis
- also concluded that due to crossing over, some chromosomes may exchange homologous genes during meiosis causing more diversity.
C. The human X chromosome carries many genes whose mutated forms cause several diseases: hemophilia, cleft palate etc..
D. Human's carry genes for color vision on the X chromosomes.
III. Sex-linked Punnett squares
A. Hemophilia is carried on the X chromosome and is sex linked.
B. Make a key:
XX (capital Hs)= normal female
XX (one lower case h)= female carrier
XX (lower case hs)= female with hemophilia
XY (capital H on X)= normal male
XY (lower case h on X)= male with hemophilia
|
|
Notes is a web-based application for online taking notes. You can take your notes and share with others people. If you like taking long notes, notes.io is designed for you. To date, over 8,000,000,000+ notes created and continuing...
With notes.io;
- * You can take a note from anywhere and any device with internet connection.
- * You can share the notes in social platforms (YouTube, Facebook, Twitter, instagram etc.).
- * You can quickly share your contents without website, blog and e-mail.
- * You don't need to create any Account to share a note. As you wish you can use quick, easy and best shortened notes with sms, websites, e-mail, or messaging services (WhatsApp, iMessage, Telegram, Signal).
- * Notes.io has fabulous infrastructure design for a short link and allows you to share the note as an easy and understandable link.
Fast: Notes.io is built for speed and performance. You can take a notes quickly and browse your archive.
Easy: Notes.io doesn’t require installation. Just write and share note!
Short: Notes.io’s url just 8 character. You’ll get shorten link of your note when you want to share. (Ex: notes.io/q )
Free: Notes.io works for 14 years and has been free since the day it was started.
You immediately create your first note and start sharing with the ones you wish. If you want to contact us, you can use the following communication channels;
Email: [email protected]
Twitter: http://twitter.com/notesio
Instagram: http://instagram.com/notes.io
Facebook: http://facebook.com/notesio
Regards;
Notes.io Team
