Biology - December 2006

2006-12-04 04:34:59 · 17 answers · asked by Anonymous

2006-12-04 04:17:13 · 2174 answers · asked by Anonymous

You suspect that some of these mutations are lacIS (superrepressor) mutations while others are lacP mutants that prevent the binding of RNA polymerase to the promoter. Describe what haploid and partial diploid genotypes will allow you to distinguish between the lacIS and lacP classes of uninducible mutations.

2006-12-04 04:04:56 · 1 answers · asked by geneticsgirl 1

I've been doing an experimental write-up for college on an experiment we did into the effects of lead nitrate as an inhibitor to catylase activity on hydrogen peroxide break-up.

One question I have to answer (for mucho extra credit) is what type of inhibitor is lead?

There may well be a very simple answer to this question but I cannot find it. Alternatively, it could be a very complicated answer!

Please help, I've looked everywhere!

Thanks

2006-12-04 03:21:31 · 0 answers · asked by Anonymous

A prokaryotic mRNA can encode several exons while a eukaryotic mRNA encodes only a single exon

true or false

2006-12-04 03:10:52 · 2 answers · asked by R C 2

a- animals will not have air to breathe.
d- ultraviolet light damages DNA.
c- we will be unable to get suntans.
d- none of the above

2006-12-04 02:58:52 · 3 answers · asked by Anonymous

a- gill pouches.
b- a bony tail.
c- fins.
d- a coat of fine fur.

2006-12-04 02:57:02 · 4 answers · asked by Anonymous

2006-12-04 02:50:30 · 7 answers · asked by sinecat2005 2

Could somebody please tell me two things that animal cells have that plant cells do not have? i'd reaalllyyy appreciate the help!

2006-12-04 02:21:43 · 5 answers · asked by Kristi H 2

You would think that nature would make them all the same.

2006-12-04 02:17:19 · 9 answers · asked by Anonymous

if humans evolved from moneys,,, why are moneys not still turning into humans.................

2006-12-04 01:57:23 · 22 answers · asked by nope 1

2006-12-04 01:35:28 · 4 answers · asked by punk rock princess 1

2006-12-04 01:23:44 · 8 answers · asked by Anonymous

Memory: declines from middle age onward?
I understand that some people experience memory decline at an earlier age than others, due to multiple factors such as lifestyle (diet, exerciese) and how complex their lives are in terms of family life, work life, etc. Do you believe that it is possible that one can undergo rigourous training requiring immense amounts of critical thinking/analyses/study in middle age or middle adulthood? For example, I've heard older student who go to medical school, etc don't fare as well in terms of admission MCATs and even during medical school. Is memory at a peak in the twenties (in which critical thinking is enhanced through study) or...can memory remain peaked for longer period of time?

I've heard of many in the family and friends circle who have attended medical, dental, and pharmacy schools at a much later age in the 40's (when they have kids and wife/husband AND a job).

What is the state of progress of a person's memory, provided that one tak

2006-12-04 01:22:20 · 1 answers · asked by summation 2

2006-12-04 00:19:09 · 7 answers · asked by boyfrom_aBove 1

a new antibiotic I.Taxonomy Fermentation, Isolation and Characterization

2006-12-03 23:32:50 · 1 answers · asked by jhe 1

for example, wide eyes versus slanted eyes.

2006-12-03 23:16:27 · 5 answers · asked by Not so looney afterall 5

I have a home work in gene maping problems
I dont know how to do it
please can any one help me
I feel like I want to cry
please if there is anyone who is interested in Genetics, please help me, please ,please
u can contact me on my msg to discuss the probelms
missitalian_9@yahoo.com

2006-12-03 22:32:57 · 3 answers · asked by Cinderella 3

Does Nocturnal emission occur only with men?

2006-12-03 21:56:25 · 5 answers · asked by aramaiya 3

2006-12-03 21:20:30 · 4 answers · asked by alain_akira03 1

2006-12-03 21:06:14 · 4 answers · asked by Velocity 1

drastically increase the osmolarity of the blood
result in a temporary increase in blood bolume
decrease thirst
cause hypertension
activate the renin-angiotensin in mechanism

2006-12-03 20:54:06 · 8 answers · asked by cricket 1

blood vessels; llymph; the cells of the body; the interstitial space; the cerebrospinal fluid

2006-12-03 20:51:55 · 2 answers · asked by cricket 1

2006-12-03 19:52:50 · 6 answers · asked by sriramna 1

2006-12-03 19:28:14 · 3 answers · asked by sriramna 1

2006-12-03 19:27:42 · 1 answers · asked by nought s 1

2006-12-03 18:15:20 · 3 answers · asked by jerr s 1

2006-12-03 17:12:38 · 4 answers · asked by jeff w 1

2006-12-03 16:57:59 · 1 answers · asked by ali s 1

2006-12-03 16:47:36 · 6 answers · asked by lizzie 2