Biology - February 2007

it's confusing so be ready...

If your puppy is homozygous dominant for a trait, it received a dominat allele for that trait form each parent. Each parent is equally responsible for that part of the puppy phenotype. The same is true for homozygous recessive parts of the puppy's phenotype. Each trai is one-eighth or 12.5% of the puppy's phenotype, so each parent contributed 6.25% for each homozygous dominant or reccessive trait.
Only where the puppy is heterozygous for a trai is only one parent responsible for that 12.5% portion of the phenotype.
Calculate the percentage of th epuppy's phenotype that came from each parent.

2007-02-04 12:57:25 · 1 answers · asked by Boptimistic!!! 1

Q1: How does DNA know when to replicate?
Q2: Where do the daugther molecules of DNA come from? Do they magicly appear, break off from the parent?
Q3: Relating to question 2, where do the Nucleotides come from in replication?
Q4: What exactly does DNA polymerases do?
Q5: What does DNA ligase do?
Q5: WHAT THE HECK IS RNA?
Q6:I'm a freshman in high school so please, can you keep it simple?

Thank you!

2007-02-04 12:55:38 · 2 answers · asked by Mizaki Kimoto 1

Axial relates to the axis of the body: head, neck, and trunk
Appendicular relates to the limbs and their "attachments to the axis"

2007-02-04 12:53:51 · 1 answers · asked by Rosabelle Winters 1

can someone give me a brief summary of :

Carbohydrates
Proteins
Fats/Oils/ Steroids
cholesterol
triglyceride
glycerol


thank you so much :)

2007-02-04 12:48:11 · 2 answers · asked by Me. 2

If you take a piece of paper or anything, and fold it or bend it, it becomes thicker. However, if you unravel a DNA molecule it is 3 feet in length. When it is folded in the nucleus it is 1 millionth of an inch. How can that happen?

2007-02-04 12:41:11 · 3 answers · asked by 007 2

A.
Can make proteins if amino acids are provided in the growth medium.
B.
Can make proteins if mRNA is provided in the growth medium.
C.
Can't make proteins unless aminoacyl synthetase is provided in the growth medium.
D.
Can't make proteins.
E.
None of the above.

2007-02-04 12:33:17 · 4 answers · asked by joseph f 1

1- Assuming we have a Hardy-Weinberg equilibrium population & the frequency of the dominant allele "B" is 90% & that "b", the recessive allele is the only other allele at this gene locus in the population, what would be the expected frequency of Heterozygous individuals in this population?

2-Why would a female animal prefer to mate w/ a male who is both physically attractive & a good father?

3- List 2 General Structural features that Annelids & Arthropods Share?
-----
1- ?? I don't really understand what I'm doing at all.
p +q= 1
0.9 +0.1= 1.00
B= 90%
b=10%
Is this even close?... PLEASE explain this to me, I'm so Confused!

2- Physically attractive= So that the offspring will have good alleles & so when the time comes, it won't have so much trouble finding a mate?
Good father= to proveide protection, & give female comfort & relief? Does that explain WHY though?

3- ?

Please Help Me. I would really appreciate it! Thank You so Much! = )

2007-02-04 12:31:52 · 2 answers · asked by Miss*Curious 5

A.
Produces repressible enzymes.
B.
Produces constitutive enzymes.
C.
Produces inducible enzymes.
D.
None of the above.

2007-02-04 12:28:14 · 1 answers · asked by joseph f 1

The necessary ingredients for DNA synthesis can be mixed together in a test tube. The DNA polymerase is from Thermus aquaticus and the template is from a human cell. The DNA synthesized would be most similar to :
A.
Human DNA.
B.
T. aquaticus DNA.
C.
A mixture of human and T. aquaticus DNA.
D.
Human RNA.
E.
T. aquaticus RNA.

2007-02-04 12:19:26 · 3 answers · asked by joseph f 1

2007-02-04 12:18:23 · 1 answers · asked by xinyi_91_peach 1

A.
The allosteric transition.
B.
The substrate binding to the repressor.
C.
The corepressor binding to the operator.
D.
The corepressor-repressor binding to the operator.
E.
The end-product binding to the promoter.

2007-02-04 12:17:27 · 1 answers · asked by joseph f 1

choices are as follows:
A.
An inducible enzyme.
B.
A repressible enzyme.
C.
A restriction enzyme.
D.
An operator.
E.
A promoter.

2007-02-04 12:13:06 · 1 answers · asked by joseph f 1

2007-02-04 12:10:34 · 3 answers · asked by mzkme 1

Biology

2007-02-04 11:51:49 · 3 answers · asked by BJ 1

Crossword puzzle - has 9 letters

2007-02-04 11:43:56 · 3 answers · asked by Anonymous

on has occured.

2007-02-04 11:42:20 · 1 answers · asked by astrorocket 2

which tissues are likely to suffer the most irreversible damage?

2007-02-04 11:37:55 · 3 answers · asked by mzkme 1

Epithelial, Connective, Muscle, or Nervous?
I think it's connective, but it might also be muscle.

2007-02-04 11:14:06 · 5 answers · asked by Rosabelle Winters 1

My little siblin needs help with his science homework and...-mutters- I don't know the answer to them.
1. What is the term for a new reproductive cell?
2. What is a random, unpredictable event in genetics?

2007-02-04 11:00:47 · 4 answers · asked by Dynamite 4

l different mRNA molecules?

2007-02-04 10:59:34 · 5 answers · asked by astrorocket 2

2007-02-04 10:52:16 · 3 answers · asked by curious 3

2007-02-04 10:40:57 · 1 answers · asked by catman1016 2

A) Toilet
B) Remote
C) Computer Mouse
D) Stair Railing
E) Kitchen Sink
F) Sponge (after 1 week's use)
G) Counter Top
H) Fridge (inside)
I) Phone
J) Door Knob

2007-02-04 10:17:02 · 15 answers · asked by masri 08 2

1- Assuming we have a Hardy-Weinberg equilibrium population & the frequency of the dominant allele "B" is 90% & that "b", the recessive allele is the only other allele at this gene locus in the population, what would be the expected frequency of Heterozygous individuals in this population?

2-Why would a female animal prefer to mate w/ a male who is both physically attractive & a good father?

3- 1 Function of the water vascular system?

4- 2 General Structural features that Annelids & Arthropods Share?
---
1- ?? I don't really understand what I'm supposed to do, do I make a punnet sqaure? I don't know where to begin or how to answer this.

2- Physically attractive= So that the offspring will have good alleles & so when the time comes, it won't have so much trouble finding a mate?
Good father= to proveide protection, & give female comfort & relief? Does that explain WHY though?

3- Locomotion?

4- ?

Please Help Me. I would really appreciate it! Thank You so Much! = )

2007-02-04 09:55:59 · 1 answers · asked by Miss*Curious 5

Or would it be a whole new you? Or would it be like Deja' Vu to the clone??? And would it make the same mistakes or make better decisions??

2007-02-04 09:50:50 · 6 answers · asked by Wonniedapooh 2

Im studying about DNA and its 4 bases which are adenine, cytosine, guanine, and thymine. The question I need to figure out is above. What does it mean by code?

2007-02-04 09:40:25 · 4 answers · asked by Anonymous

If yes and Why!!!

2007-02-04 09:39:11 · 12 answers · asked by Anonymous

With cloning the nucleus from a cell is placed inside an egg cell and then implanted for development. You then end up with an identical twin of the person you cloned. (Though the twin is several years younger)
What if, instead of placing a nucleus from a mature cell, one places the DNA from a sperm cell nucleus inside an unfertilized egg cell, and removes the original nucleus from this egg cell. Then you have an unfertilized egg cell with DNA from a sperm cell within it. Can you then fertilize this egg cell with a sperm cell and have a baby that is 50% one man and 50% another man?

2007-02-04 09:39:02 · 5 answers · asked by Brad Pitt 1

2007-02-04 09:35:32 · 3 answers · asked by funmi o 2

In our immune system, how exactly do the viruses that cause us to get sick get past the T and B memory cells?

2007-02-04 09:24:38 · 2 answers · asked by Anonymous