Biology - December 2007

Apart from lifestyle factors such as diet, stress, toxins, is there something in our DNA that will determine how long each one of us lives?

In other words, is there a biological clock ticking in our DNA that determines the maximum age you can live?

2007-12-11 14:38:24 · 7 answers · asked by Anonymous

2007-12-11 13:35:27 · 1 answers · asked by Anonymous

A) a phosphate, sugar and a lipid
B) a protein, sugar, and a base
C) a phosphate, sulfur, and a base
D) a phophate, sugar, and a base

2007-12-11 12:50:12 · 7 answers · asked by Kat 1

By Studying genetic traits, do scientists in turn study the inheritance of human traits? Why or Why not? 10 points to right answer. or best. =)

2007-12-11 12:45:03 · 5 answers · asked by ~!Ashley!~ 3

what are genetic marker?

2007-12-11 12:27:19 · 6 answers · asked by Michael 1

a. determined.
b. differentiated.
c. totipotent.
d. genomically equivalent.
e. regulated.


my book is zero help. i can not find this one anywhere. please help :/

2007-12-11 12:15:11 · 3 answers · asked by John Kastingo 1

What are the basic sources of genetic variation? Which are present in asexually reproducing populations?

Thanks for your help!

2007-12-11 11:54:42 · 1 answers · asked by ? 3

Hey I need help listing the structures that food passes through when eaten by an earthworm? In order front to back not listing ones it doesnt go through.
Thanks a lot!

2007-12-11 11:31:05 · 3 answers · asked by Anonymous

2007-12-11 10:52:51 · 5 answers · asked by Anonymous

2007-12-11 09:52:10 · 11 answers · asked by Nagisa 1

its about genetics

please help me this is for my AP bio
orange dragon are dominant over green dragons. you have an orange one and need to know wheter it homozygous or heterozygous. If you had an unlimited amount of dragons whose genotype you absolutely knew and could make any kind of cross breeding you wish how would you breed your pet orange male dragon to determine with absolute certainty his genotype.

2007-12-11 09:51:35 · 3 answers · asked by sportygirly2010 2

2007-12-11 09:50:45 · 15 answers · asked by Nagisa 1

2007-12-11 09:43:59 · 1 answers · asked by Anonymous

Please, do not answer if you are not sure. It is for a homework assignment. Thanks.

2007-12-11 09:43:53 · 2 answers · asked by James C 2

whats the difference between an artery, a capillary and a vein?

2007-12-11 09:37:52 · 5 answers · asked by Elizabeth M 1

2007-12-11 09:36:26 · 4 answers · asked by Christina M 1

The biological weapon-type monsters? You know, like the monsters in the Resident Evil games. Not exactly the zombies, I mean the monster monsters. Like the hunter, and all those type of things. (If you play RE, you should know what a hunter is). Do you think monsters like that can exist someday if created by man? I can see it happening someday, quite possibly even has already happened, only kept quiet by the government and all them.

2007-12-11 09:07:33 · 2 answers · asked by Suuuup!! 1

2007-12-11 09:05:47 · 6 answers · asked by Anonymous

2007-12-11 09:02:04 · 17 answers · asked by Anonymous

1.State the effect of multiple replication forks on the speed of replication in eukaryotes.

2.If a mutation occurs during DNA replication in the formation of an egg or sperm cell, why is that mutation inherited?

2007-12-11 08:55:22 · 3 answers · asked by Mathⁿ 4

ok i have questions on Meiosis: - How many daughter cells are there? - What is the change in chromosome number? - Number of divisions? - what is the chromosome number in the daughter cells? - whats the difference between the parent and daughter cells? pleeeease help! thank you so much

2007-12-11 08:47:30 · 4 answers · asked by Anonymous

Do these apply to mitosis, meiosis, or both?

1. involves duplication of chromosomes
2. crossing over between homologous chromosomes may occur

2007-12-11 08:42:27 · 3 answers · asked by Marissa 2

Is it the liquid water? Is it the gaseous atmosphere around the planet? minerals? Is it the life-forms and plants? OR Is it the genetic material in the form of DNA, RNA, chromosomes and genes etc of the life-forms and flora?

2007-12-11 08:33:16 · 13 answers · asked by Gee Waman 6

Molecular comparisons indicate that the vultures of Africa and America are not closely related to each other. Why do you think the vultures look so much alike?

2007-12-11 08:23:59 · 1 answers · asked by Anonymous

An ecologist studying nocturnal pocket mice found they exist in dark and light colors. Owls swallow their prey whole and then cough up "pellets" consisting of bones and fur. The ecologist discovered that 61% of the mice caught by owls were dark, and 39% were light. What is likely to happen to the pocket mice population in the future, and why?

2007-12-11 08:22:39 · 1 answers · asked by Anonymous

my friend thinks that in genetics, the individual acquires all the "negative" traits from the mother's side. i know this isn't true, its genetically impossible...please explain why?

2007-12-11 08:22:24 · 2 answers · asked by Anonymous

I am writing an essay of evolution vs. creationism, but I need to know the points of creationism. For example what does creationism say as about how the earth and humans were made?

2007-12-11 08:19:17 · 9 answers · asked by Anonymous

year 11 science

2007-12-11 07:55:50 · 3 answers · asked by simon b 1

4 Science Assement
Cant find that piece of info Anywhere =[
Plz Help !
Ta

2007-12-11 05:43:00 · 3 answers · asked by Anonymous

And please don't give me a wikipedia link!

2007-12-11 05:41:09 · 3 answers · asked by Anonymous