Science Homework HELP PLZ!!!!!?

[jessiem]

Q1 What is the difference between the terms 'genotype' and 'phenotype'?Q2 What is the difference between DNA and RNA?Q3 what is the base-pairing rule? (and if you can give me a labelled diagram of it that would be wonderfull thank you)THANKS 4 THE HELP XOX

[jurthor7248]

1. genotype has to do with your genes. like whether you have recessive genes for blue eyes or dominat genes for brown eyes. phenotype is physical appearance. ex. if you have blue eyes or brown eyes etc. i always remebered it by pheno is physical features that you can see with your eyes like eye color and geno is genes and are not physical features.2.RNA and DNA differ in three main ways. First, unlike DNA which is double-stranded, RNA is a single-stranded molecule in most of its biological roles and has a much shorter chain of nucleotides. Second, while DNA contains deoxyribose, RNA contains ribose, (there is no hydroxyl group attached to the pentose ring in the 2' position in DNA). These hydroxyl groups make RNA less stable than DNA because it is more prone to hydrolysis. Third, the complementary nucleotide to adenine is not thymine, as it is in DNA, but rather uracil, which is an unmethylated form of thymine.[13]from wikipedia. and it is true!!! 3. a-t.g-c

[Andrei2839]

here are the difference:1a. Genotype is the entire genetic identity of an individual, including alleles, or gene forms, that do not show as outward characteristics.while the 1b. Phenotype is the observable traits or characteristics of an organism, for example hair color, weight, or the presence or absence of a disease.2a. DNA is the material inside the nucleus of cells that carries genetic information. The scientific name for DNA is deoxyribonucleic acid.while the2b. RNA is a nucleic acid molecule similar to DNA but containing RIBOSE rather than DEOXYRIBOSE.3. Base-pairing rule – the way in which nucleotide bases chemically pair up in complementary nucleic acid chains of DNA or DNA/RNA. About the labeled diagram, --visit the following sites: http://fig.cox.miami.edu/~cmallery/150/gene/chargaff.htmhttp://www.geneticstv.org/the_gene_machine/The%20Gene%20Machine.pdfhttp://www.mariemontschools.org/halsall/q2dnamod.htmhttp://www.mun.ca/biology/scarr/Base_pairing_rules.htmlor you learn making the pairs by yourself, here:http://learn.genetics.utah.edu/units/basics/builddna/the complete information for DNA and the RNA http://www.stat.tamu.edu/ftp/pub/rjcarroll/2002.papers.directory/TutorialFigures.pdf