OMG PLEASE HELP.. QUESTIONS FOR FINAL...

Discussion of all aspects of cellular structure, physiology and communication.

Moderators: honeev, Leonid, amiradm, BioTeam

User avatar
dessy2591
Garter
Garter
Posts: 23
Joined: Sat Dec 16, 2006 5:46 pm
Location: az
Contact:

OMG PLEASE HELP.. QUESTIONS FOR FINAL...

Post by dessy2591 » Sat Dec 16, 2006 6:05 pm

Hey ummm if you could please help me answer some questions so i can study for my final and not fail.. umm there 20 questions so if anyone can help me please cause i have no idea what the answers are... PLEASE PLEASE PLEASE help me. Thank you so much :D

User avatar
dessy2591
Garter
Garter
Posts: 23
Joined: Sat Dec 16, 2006 5:46 pm
Location: az
Contact:

Post by dessy2591 » Sat Dec 16, 2006 6:08 pm

ummm heres the first question...
1)k it shows a picture of this x thing..and asks..
refer to the illustration above. identify the structure in the diagram and discuss its importance during eukaryatic cell division...

anyone know??

User avatar
sachin
King Cobra
King Cobra
Posts: 1517
Joined: Mon Jan 30, 2006 12:39 pm
Location: MUMBAI / INDIA
Contact:

Post by sachin » Sat Dec 16, 2006 6:41 pm

Unable to ndeerstand..........
Senior Education Officer, BNHS, India. www.bnhs.org

Bitter Truth!
Who says reason for world war III will be Petrol?
Reason lies in two words "Me and Mine".

User avatar
dessy2591
Garter
Garter
Posts: 23
Joined: Sat Dec 16, 2006 5:46 pm
Location: az
Contact:

Post by dessy2591 » Sat Dec 16, 2006 6:43 pm

haha ummm sorry.. can i ask you a different question??

User avatar
dessy2591
Garter
Garter
Posts: 23
Joined: Sat Dec 16, 2006 5:46 pm
Location: az
Contact:

Post by dessy2591 » Sat Dec 16, 2006 6:46 pm

ok next question

Explain why crossing-over is am important source of genetic variation.

User avatar
sachin
King Cobra
King Cobra
Posts: 1517
Joined: Mon Jan 30, 2006 12:39 pm
Location: MUMBAI / INDIA
Contact:

Post by sachin » Sat Dec 16, 2006 6:57 pm

crossing over is a process in which DNA fragments are exchange btween homologus chromosome.
in meiosisI.
Thus genetic infomation is exchanged and mixed with new genetic information and that causes variation in next generation.
Senior Education Officer, BNHS, India. www.bnhs.org

Bitter Truth!
Who says reason for world war III will be Petrol?
Reason lies in two words "Me and Mine".

User avatar
dessy2591
Garter
Garter
Posts: 23
Joined: Sat Dec 16, 2006 5:46 pm
Location: az
Contact:

Post by dessy2591 » Sat Dec 16, 2006 7:01 pm

Thanks... k next

Why hypotheses did Gregor Mendel develop based on his observations of pea plants?

User avatar
sachin
King Cobra
King Cobra
Posts: 1517
Joined: Mon Jan 30, 2006 12:39 pm
Location: MUMBAI / INDIA
Contact:

Post by sachin » Sat Dec 16, 2006 7:01 pm

dessy2591 wrote:ummm heres the first question...
1)k it shows a picture of this x thing..and asks..
refer to the illustration above. identify the structure in the diagram and discuss its importance during eukaryatic cell division...

anyone know??


X is chromosome with it's sister chromatid and that occurs due to DNA replication before cell division. And it helps in keeping chromosomal number constant in daughter cell....

I got it :idea: :idea:
Senior Education Officer, BNHS, India. www.bnhs.org

Bitter Truth!
Who says reason for world war III will be Petrol?
Reason lies in two words "Me and Mine".

User avatar
sachin
King Cobra
King Cobra
Posts: 1517
Joined: Mon Jan 30, 2006 12:39 pm
Location: MUMBAI / INDIA
Contact:

Post by sachin » Sat Dec 16, 2006 7:03 pm

dessy2591 wrote:Thanks... k next

Why hypotheses did Gregor Mendel develop based on his observations of pea plants?


beacause all the results of selfing and hybridisation experiments were relative to each other thats why.....
Senior Education Officer, BNHS, India. www.bnhs.org

Bitter Truth!
Who says reason for world war III will be Petrol?
Reason lies in two words "Me and Mine".

User avatar
dessy2591
Garter
Garter
Posts: 23
Joined: Sat Dec 16, 2006 5:46 pm
Location: az
Contact:

Post by dessy2591 » Sat Dec 16, 2006 7:04 pm

haha thanks.. do you have msn??

User avatar
sachin
King Cobra
King Cobra
Posts: 1517
Joined: Mon Jan 30, 2006 12:39 pm
Location: MUMBAI / INDIA
Contact:

Post by sachin » Sat Dec 16, 2006 7:05 pm

No I don't...
But have Yahoo.....
Senior Education Officer, BNHS, India. www.bnhs.org

Bitter Truth!
Who says reason for world war III will be Petrol?
Reason lies in two words "Me and Mine".

User avatar
dessy2591
Garter
Garter
Posts: 23
Joined: Sat Dec 16, 2006 5:46 pm
Location: az
Contact:

Post by dessy2591 » Sat Dec 16, 2006 7:09 pm

dang.. ok nm.. umm do you know the last question i put up??

Post Reply

Who is online

Users browsing this forum: No registered users and 12 guests