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introduction for parents
genes for parents
structure for parents
replication for parents
detail for parents
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Times they are a changing - and science is the engine of that change.
EurekaScience.com pages contain a great deal of information about DNA and
its role in cell biology for classroom and homeschool teachers, parents, and
students of all ages. This page is designed to serve as a hub in all
of the information to direct you to your area of specific interest.
webpage: DNA introduction
webpage: DNA introduction for parents &
We have all heard about DNA - but what is it? Deoxyribonucleic Acid
(DNA) is the molecule responsible for heredity - why children look like
parents. DNA is the famous 'double helix' that looks like a spiral
staircase in structure. Proteins, called 'histones', attach to the DNA
and the combination is referred to as a 'chromosome'. 23 pairs of
chromosomes make up the human genome. DNA is awe-inspiring in
some ways. If all of the DNA in a human body were stretched end to
end, it would reach from the earth to the sun - and back - 30 times !
webpage: DNA structure
webpage: DNA structure for parents &
DNA are long, double-stranded helixes made up of nucleotides. It
is synthesized by enzymes called 'DNA polymerases'. Nucleotides are
created from phosphate, sugar, and a base. There are 4 bases and thus,
4 nucleotides that can be created. For DNA these are adenine (A),
thymine (T), guanine (G) and cytosine (C). The two strands of DNA are
held together by non-covalent bonds between A & T and G & C.
webpage: DNA genes
webpage: DNA genes for parents & teachers
Genes are stretches of nucleotides along the length of the DNA.
Genes come in different lengths and code for different proteins. There
are other stretches of the DNA that do not code for proteins and their exact
purpose is unknown. In addition there are stretches of the DNA that
enable regulation of the genes.
webpage: DNA replication
webpage: DNA replication for parents & teachers
webpage: DNA replication detail
webpage: DNA replication detail for parents &
The faithful replication of DNA is central to all of biology and it took
quite some time to understand how it is accomplished. The two strands
are pulled apart, much like a zipper, and a complementary strand is created
based upon the pairing of adenine with thymine and cytosine with guanine.
Enzymes are responsible for unwinding the DNA strand and for linking the
nucleotides into new DNA strands.
Ask Dr. Pat
webpage: Ask Dr. Pat topics
Check out the questions that students, parents, teachers and life-long
learners have sent into Dr. Pat regarding DNA and the answers.
You'll find things like: how chromosome pairs are pulled into separate
cells during cell division.
webpage: Science in the News
These pages are constantly being updated with the latest breakthroughs and
discoveries in biology, medicine, archaeology, astronomy, marine biology
or about endangered species or our planet earth. This can be useful
information for term papers, lesson plans, or to simply keep up on the
fascinating world around us.
learn more ! google:
one gene one protein
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