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Bio: Nucleic Acid Worksheet
Terms in this set (33)
Write out the full name for DNA.
What is a gene?
a segment of DNA that codes for a particular protein
Where in the cell are chromosomes located
DNA can be found in what organelles in the cell?
chloroplasts and Mitochondria
What two scientists established the structure of DNA?
Watson and Crick
What is the shape of DNA?
The sides of the DNA ladder are composed of what?
Sugar & phosphate
The "rungs" of the DNA ladder are made of what?
What sugar is found in DNA? In RNA?
Deoxyribose & ribose
How do the bases bond together?
A bonds with T G bonds with C
The two purines in DNA are
denine and guanine.
DNA is made of repeating units called
Why is RNA necessary to act as a messenger? Why can't the code be taken directly from the DNA?
DNA is too large to leave the nucleus
Proteins are made where in the cell?
On the ribosome in the cytoplasm
How do some cells become brain cells and others become skin cells, when the DNA in ALL the cells is exactly the same?
most genes are turned off
Why is the DNA molecule referred to as the "blueprint of life"?
tells the cell how to build the organism
mRNA has a ______ strand of nucleotides.
______ replaces ________ on RNA.
_______ is the pentose sugar on RNA.
____________, not DNA can leave the nucleus through ______ _______ in the nuclear envelope.
Messenger RNA, nuclear pores
Proteins are made at the __________.
________ bonds between bases must be broken to copy DNA.
Copying DNA to make two, identical DNA molecule is called ________.
Nucleotides are made of a pentose ________, a _______, and a nitrogen-containing _____.
deoxyribose, phosphate, base
Name 2 bases with double C-N rings.
What makes up the "rungs" of DNA?
What will pair with adenine?
What is meant by a double helix?
2 strands of DNA in a helix shape are bound together
Name a pentose sugar.
The sides of DNA are made of ____________ and _________.
____ on chromosomes code for specific _____ in a cell.
DNA is also found in _________ and _________.
What important polymer is located in the nucleus? ______ is the instructions for making a cell's ______.
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