Biology - February 2007

2007-02-10 14:34:52 · 3 answers · asked by azn dude 2

how does enzyme lower activation energy? How does it affects rate of reation? using hexokinase and

2007-02-10 14:27:07 · 2 answers · asked by Anonymous

2007-02-10 14:10:21 · 1 answers · asked by selece_wingard 1

what is a funny valentine saying that has to deal with biology?

help me please!

2007-02-10 13:41:38 · 6 answers · asked by outkast19920 1

2007-02-10 13:26:07 · 17 answers · asked by sun 2

Describe cell signalling effects of caffiene that relate to its role as a stimulant.

2007-02-10 13:13:23 · 2 answers · asked by Alan l 1

In Drosophila, Dichaete (D) is a chromosome 3 mutation with a dominant effect on wing shape. It is lethal when homozygous. The genes ebony (e) and pink (p) are chromosome 3 recessive mutations affecting body and eye color, respectively. Flies from a Dichaete stock were crossed to homozygous ebony, pink flies, and the F1 progeny, with a Dichaete phenotype, were backcrossed to the ebony, pink homozygotes. The results of this back cross were

Phenotype
Number

Dichaete
401

ebony, pink
389

Dichaete, ebony
84

pink
96

Dichaete, pink
2

ebony
3

Dichaete, ebony, pink
12

wild type
13


(a) Diagram this cross, showing the genotypes of the parents and offspring of both crosses.

(b) What is the sequence of and interlocus distance between these three genes?

2007-02-10 12:59:14 · 1 answers · asked by Lilac 2

please tell me some of the basic stuff about evolution.

2007-02-10 12:57:21 · 14 answers · asked by boratiskuta 1

2007-02-10 12:14:50 · 10 answers · asked by cArAmeLo 1

what goes in the blanks?

Atom -> ____ -> ___ -> Cell ->___->___->___->Organism

the things between atom and cell are NONLIVING

the things between the cell and the organism are LIVING

Please Help :]

2007-02-10 12:01:10 · 6 answers · asked by a.m. 4

if you can please post the website were you found this information.
(only if you used a website to find the answer)

2007-02-10 11:44:45 · 1 answers · asked by #1 soccer fan 2

2007-02-10 11:32:22 · 12 answers · asked by John 2

a. injecting weakened or dead viruses
b. having a disease
c. injecting antibodies
d. injecting a vaccine.
which is the correct answer ?

2007-02-10 11:27:21 · 3 answers · asked by Anonymous

a. interferon against viruses.
b. lysozyme in saliva and tears to destory bacteria
c. antibodies or proteins produce in response to an antigen
d. antibodies in response to bacterial toxins

2007-02-10 11:15:18 · 5 answers · asked by Anonymous

a. Females begin releasing eggs and hormones secretions during puberty and slow down or stop during menopause.
b. In the female, FHS stimulate follicle development in the ovary
c. All of the pontential eggs in a female are present at her birth
d. Fertilization , if it occurs will usually happen in the uterus

2007-02-10 11:02:06 · 10 answers · asked by Anonymous

it is considered both living and non-living and so how could it have evolved from a living thing?

i don't actually believe in evolution, i'm just curious to see what you come up with.

2007-02-10 11:01:57 · 7 answers · asked by this is me! 3

how did the FIRST cell survive without food for cellular respiration?
all the plants and animals the food comes from didn't exist yet.

2007-02-10 10:48:11 · 12 answers · asked by this is me! 3

2007-02-10 10:25:53 · 2 answers · asked by Anonymous

2007-02-10 10:21:53 · 9 answers · asked by Anonymous

if a microscope didn't have a light source, what is a way to capture light so that the specimen could be seen easily?

2007-02-10 10:13:50 · 2 answers · asked by Anonymous

are the largest contributors to global warming? Is it then wise to export and promote our current education system as it seems to refect the old industrial revolutions school of thought, in some ways making it redundant

2007-02-10 09:57:31 · 4 answers · asked by swamp cat 1

I need to find four ways to tell different sharks apart for science hw!!!!!

2007-02-10 09:57:19 · 2 answers · asked by clumsydevil 1

a. increased neurotransmitter activity at the synapse
b. decrease neurotransmitter activity at the synapse
c. alteration of pain or mood
d. all of the above
is option d. the right answer or a. ?

2007-02-10 09:37:58 · 4 answers · asked by Anonymous

then why are they still existant? it's been bothering me for ages. like if we evolved("we" i mean man) throughout millions of years then why are they still here? dont get me wrong i love monkeys & chimps. its probably an easy answer like...haha

2007-02-10 09:06:21 · 25 answers · asked by rainbowcountry 1

a. only in the lungs
b. when the diaphragm contracts
c. in the alveoli
d. within cells
which of these answers is correct ?

2007-02-10 09:00:59 · 9 answers · asked by Anonymous

Performative Acts and Gender Constitution: An Essay in Phenomenology and Feminist Theory

by Judith Butler

Its about 12 pages long and I tried to find it on the Internet but only came up with 3 page previews so far.

2007-02-10 08:56:13 · 5 answers · asked by Anonymous

I need some help!

1. What physical features do homologous chromosomes have in common?
2. How do trisomies arise?
3. Why do trisomies of certain chromosomes seem to occur much more frequently than others?

2007-02-10 08:47:23 · 6 answers · asked by Anonymous

Generally it seems to be that we define species by the ability to breed within the group. Why is it that wolves, coyotes and dogs are considered separate species when they can interbreed?

2007-02-10 08:41:54 · 12 answers · asked by Sky Salad Clipper 3

In mice, the yellow coat color gene (y) is lethal in homozygous form...if a mouse receives the homozygous gene, what is that phenomenon called?

2007-02-10 08:36:17 · 5 answers · asked by Ukerz 1

The real question is: Where in the human body would you expect to find cells undergoing meiosis? Where would you expect to find cells undergoing mitosis?
*This is my science homework, and If i don't get it done im dead*

2007-02-10 08:14:53 · 4 answers · asked by ornaally 1