Search found 11 matches

by 2Loula
Tue Apr 03, 2007 12:26 pm
Forum: Cell Biology
Topic: Which compound more likely to occur in cells?
Replies: 1
Views: 1104

Which compound more likely to occur in cells?

Was wondering if anyone could help me out with this. 2 compounds: CH3(CH3)CH-CH2-CH3 OR CH3(CH3)CH-CH(NH3+)-C=O(O-) I need to figure out which one is more likely to occur in cells. I think it must have something to do with the NH3+ group but I am not sure. Any help would be appreciated.
by 2Loula
Mon Apr 02, 2007 4:32 pm
Forum: Genetics
Topic: Dihybrid genotypic and phenotypic problem help needed
Replies: 3
Views: 4848

Hey, Yup, the first plant is TtCc, and the pure breeding strain will be TTCC. Basically, when it says pure breeding, it means is homozygous, and will probably mention somewhere else in the question if it is pure breeding dominant (like your question), or pure breeding recessive. A dihybrid punnett s...
by 2Loula
Sat Mar 31, 2007 6:53 pm
Forum: Human Biology
Topic: chromosomes and Homologous
Replies: 3
Views: 1626

For example, humans have 46 chromosomes, and 23 homologous pairs of chromosomes.
by 2Loula
Wed Mar 28, 2007 11:40 am
Forum: Cell Biology
Topic: Urgent, really need help
Replies: 4
Views: 2348

Trying searching in google. There are tonnes of decent sites with all the info you'll need about AA and proteins.
by 2Loula
Tue Mar 27, 2007 9:37 pm
Forum: Evolution
Topic: Natural selection or Genetic mutation?
Replies: 11
Views: 5322

I believe that both are necessary.
by 2Loula
Tue Mar 27, 2007 9:31 pm
Forum: Cell Biology
Topic: Urgent, really need help
Replies: 4
Views: 2348

It is also used in cellular respiration, photosynthesis and biosynthesis (regulation of allosteric mechanisms). ATP is also critical for facilitating assembly and disassembly of elements of the cytoskeleton, and is required for the shortening of actin and myosin filament crossbridges,required for mu...
by 2Loula
Wed Mar 21, 2007 5:16 pm
Forum: Cell Biology
Topic: Why Palmitate is a common constituent of cells?
Replies: 10
Views: 3952

I'm doing biomed.... and have no idea how to do half the questions in the bloody booklet.
by 2Loula
Tue Mar 20, 2007 9:55 pm
Forum: Genetics
Topic: hair
Replies: 2
Views: 1593

Hair is curly or striaght depending on the number of disulphate bonds between the hair proteins.

Curly hair has a greater number of links, wheras the fewer the links, the straighter the hair.

Sorry if that doesn't help much...this infact, is not one of my questions, I only have the first 6.
by 2Loula
Tue Mar 20, 2007 6:56 pm
Forum: Cell Biology
Topic: Why Palmitate is a common constituent of cells?
Replies: 10
Views: 3952

Yup, I am....I have spent bloody ages trying to find these questions using textbooks & the net.

Thanks MrMistery, I thought it had something to do with the carboxyl group. Your help is much appreciated.
by 2Loula
Tue Mar 13, 2007 1:10 pm
Forum: Genetics
Topic: Question
Replies: 8
Views: 4661

Colour Blindness is an X-linked recessive trait. If a female has normal vision, and to have colour-bind children, she would either have to be a carrier of the recessive gene, and/or be married to a colour blind male. For example, a cross between a colour-blind male (XrY) and a normal vision woman wh...
by 2Loula
Tue Mar 13, 2007 12:57 pm
Forum: Cell Biology
Topic: Why Palmitate is a common constituent of cells?
Replies: 10
Views: 3952

Why Palmitate is a common constituent of cells?

Hey,

I was wondering if anyone could help me with this. I cannot find any definite answers anywhere, though I am still looking, but if anyone has any info on this, it would be great.

Why is the organic compound hexadecane not a common constituent of cells, wheras Palmitate is?