Biology - December 2006

2006-12-04 15:37:15 · 3 answers · asked by To-the-Stars 4

For instance,shouldn't all apes & monkeys be dead since humans supposedly descended from them according to any evolutionary theory?I do believe that evolution is just that-theory,not fact!

2006-12-04 15:33:30 · 11 answers · asked by auntfran8 3

PLEASE HELP!!!!!!

2006-12-04 15:28:48 · 3 answers · asked by Anonymous

2006-12-04 15:08:34 · 5 answers · asked by guevarakenneth 2

2006-12-04 14:46:43 · 5 answers · asked by jill 2

In humans, short fingers(brachydactyly) [B] and woolly hair [W] are dominant over the recessive alleles for normal fingers [b] & normal hair [w]. A man with brachydactyly & normal hair marries a woman with normal fingers & woolly hair. Their 1st child has normal fingers & normal hair.

a- What is the genotype of the man?
b- What is the genotype of the woman?
c- What is the genotype of the child?
d- What is the probability of any child of the above mentioned mating having normal fingers?
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I think I have to make a Dihybrid cross.From the info given, I think the man is Bbww, the woman is bbWw & the child is bbww. I have to SHOW it though,what is my dihybrid supposed to be made of though?What goes on top- on the left?

a- Dad= heterozygous?
b- Mom= heterozygous?
c- Child=homozygous?
d- 50-50 chance

Please Help explain this to me, I Don't know what combinations should be in my punnett square, what letters go where? Thanks so Much! = )

2006-12-04 14:44:23 · 3 answers · asked by Miss*Curious 5

A mutant is found in which the operon is uninducible. Assuming the affected gene makes a protein, what kind of transcriptional regulator could the gene produce?

2006-12-04 14:19:09 · 2 answers · asked by Bluedevils 1

I have a stock concentration of 100uM, these volumes are so small they are confusing me - I know it is possible because my PCR protocol calls for 1.0 and 0.05 pmol of primers. Any help? THANKS!

2006-12-04 14:10:44 · 2 answers · asked by pMn 1

like birds have wings to fly away from predators..... stuffs like that. im researching snowbushes from coniferous forests.

2006-12-04 14:09:37 · 1 answers · asked by beyondxxdreamz 2

How would you find the off springs( the top and the side things to put out side of the punnett square).
Mr.Easter : EeTtHh
Mrs. Eater: EeTtHh. You have to foil three times just tell me what the letter going to be when FOIL three times. Please Help. I will do the rest just tell me the letters. Thank you.

2006-12-04 14:08:22 · 1 answers · asked by Best Helper 4

Which hypothesis on the origin of life states that proteins, lipids, and other complex organic molecules formed when energy from the sun and other sources caused chemical reactions among gases in Earth's prehistoric atmosphere?

Primordial soup
Spontaneous Generation
Biogenesis
Self-Replicasting molecules

2006-12-04 14:07:28 · 2 answers · asked by Anonymous

I had a lab about lipids where my class just rubbed olive oil on a brown piece of paper. I do know it has something to do with filling the gaps in the papers leaving a translucent surface, but how?

2006-12-04 13:39:55 · 1 answers · asked by jackie b 1

2006-12-04 13:37:16 · 7 answers · asked by Anonymous

My husband and I are having a little bet - strange topic I know! Can anyone tell me the average weight of a human eye?

2006-12-04 13:25:47 · 2 answers · asked by Erin R 1

in which layer[s] do you think the photosynthetic cells would be located? please explain your reasoning.

2006-12-04 13:21:33 · 4 answers · asked by j 2

2006-12-04 12:46:27 · 1 answers · asked by rose 1

The worlds food resources are being streached beyond the limit. Gene splicing and joining has yielded considerable means of food. France wants no part in it. They call the foods, "Frankinfoods." They are outlawed in France. What will be the effects of our insect pests of various food crops? Will they survive off just bio-engeered food?

It is for Biology. I have to do a Powerpoint persentation of at least 30 slides of hat will be the effects of our insect pests of various food crops. Please help!

2006-12-04 12:24:05 · 3 answers · asked by clankandmatt 3

This is a serious question. My gf and I have been debating whether this is a natural behavior. Also from an evolutionary perspective why do humans do it?

2006-12-04 11:59:54 · 5 answers · asked by dtshaff 3

2006-12-04 11:46:09 · 2 answers · asked by Roy D 1

Sorry for a stupid question, I'm in grade 9 and I'm working on a project.

2006-12-04 11:41:42 · 3 answers · asked by rewmmm 1

I'm not talking about the more controversial embryonic stem research. I'm talking about just stem cell research in general...like adult stem cell research. Personally, I think this is an idiot question, but I have to answer it for a science project T-T Sources would be very, very beneficial.
Any help is appreciated!

2006-12-04 11:36:52 · 3 answers · asked by somebabo 2

What is the major advantage a transmission electron microscope has over a compound light microscope?...what is the major disadvantage?

please help me...?

2006-12-04 11:06:13 · 1 answers · asked by Anonymous

in a cell what is the purpose of the nucleolus?

2006-12-04 10:47:45 · 5 answers · asked by Drew 1

Practical for counting and identification of blood cells

2006-12-04 10:47:11 · 3 answers · asked by Anonymous

2006-12-04 10:17:13 · 9 answers · asked by S L 1

In humans, short fingers(brachydactyly) [B] and woolly hair [W] are dominant over the recessive alleles for normal fingers [b] & normal hair [w]. A man with brachydactyly & normal hair marries a woman with normal fingers & woolly hair. Their 1st child has normal fingers & normal hair.
a- What is the genotype of the man?
b- What is the genotype of the woman?
c- What is the genotype of the child?
d- What is the probability of any child of the above mentioned mating having normal fingers?
---
I think I have to make a Dihybrid cross, I'm not sure what I'm using in it exactly. From the info given, I think the man is Bbww, the woman is bbWw & the child is bbww. What is my dihybrid supposed to be made of though?What goes on top- on the left?
a- Dad= heterozygous?
b- Mom= heterozygous?
c- Child=homozygous?
d-?? idk b/c idk how my punnett square should be set up

Please Help explain this to me, I am confused about what combinations should be in my punnett square. Thanks! = )

2006-12-04 10:08:39 · 1 answers · asked by Miss*Curious 5

2006-12-04 09:50:33 · 6 answers · asked by Bob A 1

2006-12-04 09:35:51 · 8 answers · asked by danielles_thoughts 1

I understand that nuleotide polymorphism can arise by the mutation of already existing nucleotides, but how do you get from a simple organism with few genes to a complex one with many?

Most of the arguments in favour of ID are pretty easy to counter, but I'm stuck on this one.

2006-12-04 09:33:42 · 8 answers · asked by Anonymous

Assume that large, free earlobes are controlled by the dominant allele (F) & attached earlobes by the recessive allele (f). In addition, the ability to curl the tongue into a U shape is regulated by the dominant allele (T) & the recessive allele (t) produces NON tongue rolling condition. These genes are on separate chromosomes; hence they assort independently.
a- A woman who is a free-earlobed tongue roller marries a man who has attached earlobes and is a Non tongue roller. Their only child, a boy has attached earlobes & can't roll his tongue. What are the genotypes of his mother, his father, and the boy?
b- For the Above situation,Show a Punnett square for the mating of a male who is heterozygous for Both traits & a female who is homozygous recessive for both traits. What are the Genotypic & Phenotypic ratios of this mating?
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I think I have to make a dihybrid with FT-Ft-fT-ft & I think the boy & dad- homozygous recess. & Mom= heterozygous.Idk how to show all of this though.

2006-12-04 09:29:11 · 1 answers · asked by Miss*Curious 5