Biology - August 2007

2007-08-20 14:08:22 · 4 answers · asked by Anonymous

We being defined as, I dunno, the domain eukarya or something.

Anyways, could we (original organisms, etc.) not have "abiogenesized" in multiple parts of the earth near simultaneously and (maybe) come from different ancestors that eventually evolved to interbreed?

2007-08-20 13:43:22 · 11 answers · asked by Moodrets 2

Multiple choice questions

Hemophilia a recessive, sex-linked trait. Use n to represent the allele for hemophilia. A woman has normal blood clotting type O marries man with normal blood clotting type AB blood. The womans father was known to be hemophiliac with type B blood.

a. Womans fathers genotype as completely be determined.
a. XnY,BB b.XNY,BO c.XnXn,BO d.XnY,BO

b. term best describe woman relating to hemophilia?
a.pure breeding b.hybrid or heterozygous c.carrier d. dihybrid e. none of these

c. what are chances couple having child with hemophilia?
a.0 b.1 c.1/2 d.1/4 e. 3/4

d. chances having a daughter with hemophilia?
a.0 b.1 c.1/2 d.1/4 e.1/8

e. chances having a son with blood type A and hemophilia?
a.0 b.1 c.1/2 d.1/4 e.1/8

f. according to laws of probability, what percentage of this womans sons should inherit the sex-linked trait hemophilia
from their mother?
a.0% b.25% c.50% d.75% e.100%

2007-08-20 13:35:33 · 3 answers · asked by momtoboys 2

2007-08-20 12:18:44 · 12 answers · asked by Anonymous

This is a mind-boggler to me and I'm wondering if any biology geniuses out there have the answer (...and if it involves religion, I'm spamming your account with naughty emails). Anyways, we all know asexual organisms clone themselves to produce an exact copy of itself, whereas sexual organisms combine DNA and create something with variation. Now, I'm wondering, since asexual organisms supposedly came first, how did evolution create sexual organisms. Obviously asexual organisms weren't just like "Let's combine our DNA to make something with variation and a better chance for survivial in a catastrophe!" What happened? How did cloning (asexual reproduction) turn into sex (sexual reproduction)? Mother nature really is intelligent.

2007-08-20 12:07:28 · 4 answers · asked by Gregory 2

I was just wondering because i am writing a paper on the ethics of stem cell research, and in all the things i've read they say alot about theraputic cloning. I'm wondering for my own personal knowlege and to see if my title even makes sense. The title is: "To clone or not to clone: The ethics of stem cell research"

Thanks in advance.

2007-08-20 10:32:03 · 3 answers · asked by Jackie 3

2007-08-20 09:37:39 · 6 answers · asked by quigonpie@btinternet.com 1

Lungs

Liver

Spleen

None of the above

2007-08-20 08:11:33 · 10 answers · asked by Alyssa R 1

Esophagus

Stomach

Intestines

None of the above

2007-08-20 08:00:39 · 3 answers · asked by Alyssa R 1

2007-08-20 07:40:04 · 37 answers · asked by julie w 1

a. Lungs
b. Legs
c. Moist skin
d. All of the above

2007-08-20 07:11:09 · 17 answers · asked by Angel 1

how does it retain charge/current and from where this current/charge comes from? Thanks. :)

2007-08-20 07:05:52 · 8 answers · asked by Anonymous

Name the three groups of fish.

2007-08-20 06:47:41 · 3 answers · asked by Angel 1

The fish is a Sting Ray!

a. Fins


b. Scales


c. Swim bladder

2007-08-20 06:22:25 · 1 answers · asked by Angel 1

2007-08-20 06:04:05 · 3 answers · asked by lex 1

It's in an answer of a question. It's stated there that genes can only lose information over replication (and therefore there must be something else that created all these species). I highly doubt this by the way. The original answer is here (by answerer 12)
http://answers.yahoo.com/question/index;_ylt=Aheb0cX6Re6ZY5HdYJimWWdIzKIX?qid=20070812221152AASIrOs

2007-08-20 05:56:01 · 15 answers · asked by CR s 1

A. Asexual
B. Sexual

C. Mitosis

D. Fission

2007-08-20 05:19:51 · 2 answers · asked by ATL'S KNOW IT ALL 1

2007-08-20 05:17:29 · 3 answers · asked by Anonymous

A. ribosomes.
B. sugars.

C. enzymes.

D. amino acids.

2007-08-20 05:14:21 · 6 answers · asked by ATL'S KNOW IT ALL 1

2007-08-20 04:24:30 · 6 answers · asked by Hollie Rushmere 1

2007-08-20 03:45:18 · 2 answers · asked by Raymarcus H 1

In addition to being able to metabolize, grow, digest food, and excrete wastes, what functions must an organism perform if it is to survive?

2007-08-20 03:41:48 · 5 answers · asked by Anonymous

2007-08-20 03:34:17 · 1 answers · asked by Rosliana R 1

chromosome

2007-08-20 02:48:49 · 4 answers · asked by gundi007 1

father. In a baby that developes from the two gene contributors, the pairs of traits on its DNA will

A. no longer be related to those of the parents.

B. result from recombining traits from the mother and father

C. result from recombining the male traits around the female traits

D. be result of random matching errors

2007-08-20 02:36:07 · 3 answers · asked by Neesh 1

If they can't move, how do they have sex with each other?

Where do tghey get pregnant, in the roots or the branches?

2007-08-20 02:14:09 · 12 answers · asked by Anonymous

are human the only species ever on earth to commit suicide? does this give either side of the evolution debate any clout? does this have some special significance that we can comtemplate such a thing?

2007-08-20 02:08:52 · 5 answers · asked by BRYAN H 5

I'm just checking whether someone I know was telling the truth, when they said they went to the beach.
And yes, the question includes the moist sand, or the part of the sand which is reached by the waves.

(The whole story is irrelevant to tell here).

2007-08-20 01:52:11 · 6 answers · asked by Anonymous

Long time ago scientists says that evolution is caused by mutation,I think that long time ago there is no pollution,Why there is mutation?

2007-08-20 00:38:02 · 3 answers · asked by Marlou G 1

2007-08-19 18:10:11 · 6 answers · asked by esha26 1