oDNA THE DOUBLE HELIX -- (modified from The Biology Corner - Worksheets and Lessons) hody in a cell. It is called the "control center" be hn nucleus, are microscopi

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Chapter6: Dna Structure And Function
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smolA
eno DNA -- THE DOUBLE HELIX
(modified from The Biology Corner - Worksheets and Lessons)
The nucleus is a small spherical, dense body in a cell. It is called the "control center" because it
controls all the activities of the cell. Chromosomes, found in the nucleus, are microscopic,
threadlike strands composed of the chemical DNA (short for deoxyribonucleic acid).
Chromosomes are composed of genes, which is a segment of DNA that codes for a particular
protein which in turn codes for a trait. It is commonly referred to as the gene for baldness or
the gene for blue eyes.
In 1953, James Watson and Francis Crick established the structure of DNA. The shape of DNA
is a double helix, which is like a twisted ladder. The sides of the ladder are made of alternating
sugar and phosphate molecules. The sugar is deoxyribose. Color all the phosphates red (labeled
with a "p"). Color all the deoxyriboses blue (labeled with a "D").
The rungs of the ladder are pairs of 4 types of nitrogen bases. The bases are known by their
coded letters A, G, T, C. These bases always bond in a certain way. Adenine will only bond to
thymine. Guanine will only bond with cytosine. The bases can occur in any order along a strand of
DNA. The order of these bases is the code that contains the instructions. For instance
ATGCGCATAT would code for a different gene than CGATCGCGAT. A strand of DNA contains
millions of bases.
Color the thymines orange.
Color the adenines green.
Color the guanines purple.
Color the cytosines yellow.
The Blueprint of Life
Every cell in your body has the same "blueprint" or the same DNA. Like the blueprints of a house
tell the builders how to construct a house, the DNA "blueprint" tells the cell how to build the
organism. Yet, how can a heart be so different from a brain if all the cells contain the same
instructions? Although much work remains in genetics, it has become apparent that a cell has
the ability to turn off most genes and only work with the genes necessary to do a job. We also
know that a lot of DNA apparently is nonsense and codes for nothing. These regions of DNA
that do not code for proteins are called "introns", or sometimes "junk DNA". The sections of
DNA that do actually code from proteins are called "exons".
Color the images according to your instructions.
Transcribed Image Text:smolA eno DNA -- THE DOUBLE HELIX (modified from The Biology Corner - Worksheets and Lessons) The nucleus is a small spherical, dense body in a cell. It is called the "control center" because it controls all the activities of the cell. Chromosomes, found in the nucleus, are microscopic, threadlike strands composed of the chemical DNA (short for deoxyribonucleic acid). Chromosomes are composed of genes, which is a segment of DNA that codes for a particular protein which in turn codes for a trait. It is commonly referred to as the gene for baldness or the gene for blue eyes. In 1953, James Watson and Francis Crick established the structure of DNA. The shape of DNA is a double helix, which is like a twisted ladder. The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar is deoxyribose. Color all the phosphates red (labeled with a "p"). Color all the deoxyriboses blue (labeled with a "D"). The rungs of the ladder are pairs of 4 types of nitrogen bases. The bases are known by their coded letters A, G, T, C. These bases always bond in a certain way. Adenine will only bond to thymine. Guanine will only bond with cytosine. The bases can occur in any order along a strand of DNA. The order of these bases is the code that contains the instructions. For instance ATGCGCATAT would code for a different gene than CGATCGCGAT. A strand of DNA contains millions of bases. Color the thymines orange. Color the adenines green. Color the guanines purple. Color the cytosines yellow. The Blueprint of Life Every cell in your body has the same "blueprint" or the same DNA. Like the blueprints of a house tell the builders how to construct a house, the DNA "blueprint" tells the cell how to build the organism. Yet, how can a heart be so different from a brain if all the cells contain the same instructions? Although much work remains in genetics, it has become apparent that a cell has the ability to turn off most genes and only work with the genes necessary to do a job. We also know that a lot of DNA apparently is nonsense and codes for nothing. These regions of DNA that do not code for proteins are called "introns", or sometimes "junk DNA". The sections of DNA that do actually code from proteins are called "exons". Color the images according to your instructions.
Name
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Transcribed Image Text:Name nont baitibon) (ers isu tnso fo DNA -- THE DOUBLE HELIX e o ei euuloon art aigoo2o1aim ono ualbun arlt ni bnuot,asnoRomoo las snt to asitivitoo arit lo alonto0s (biso aralounodinpxo tonle) AVd ardt to bseoqmoo abnovte alilboanit g to bazogmo0 310 20moeomon Pabes ut ni dairdw niotong 2oy ould sot onag arlt nolusitiog o 1ot eaboo tor d to too al dai 70 22onblod ot ansp ant 20 sten yinomco ei 13 to sgorle sdT AMG unte orito 0 0tep la o bro noztoW 2smoT.el nI enitomatio to sbom ano bbolpT 1o 25bi2 srT obbol b D sil ei doidw xilsri alduob p ai alsdbl) ban astorigeorig holo3.s20dinpcosh zi noou .2aluoslom storiqaoriq bno nopue dol) suld 25odxoob arit llo nolo ("q" p itiw 000 eszod nogortin to esqyt iog s1D n9bbel srit to apnun aT i bod zyowin 2sos2T 5 T.0,A 213ttai babos i bnod vino lliw aninoud animyrit S ranl no 2noiu nt enintnos torlt obodei 292od saait o nob1o aT A niotnoo AMd to bronte AA TA erlt ib o not aboo bluow TATADƏƏTA 292od to anoillim niarit yd rwool so 232 ot bnod vino lliw sninsb 000 0 00 sprprori orit nolo 700 10 bo sit 1olo) sninoup arlt nolo otya srlt nolo stiJ to tringsul8 snT 00 o to ztningsuld arit axi + bliud or worl llas srit ningsuld" AVd sat s 02 arlt niotnos zllss sHa dnont tronali ooe adt 2ori ybod uoy ni llss ynsvs tountenoo ot worl 2nobliud arlt ilst d trosrl p noa word tsY azinogno liaɔ p torlt tnionoqgo sogd zod tio00 p ni aniom ow rloum lguontIA Sanoitunteni W doj o ob of yneosDnsg ST tiw TOW V snag tzom tto mut ot yrilido ant 1G to znoipai 32adT nion not 2obos bro 92an tranpgdo AVd to tol p tont won 2noitas2 aT."AUOuSS 10 ontni" balo D istong 1ot aboo ton ob tont 20to mont sbos ylloutao ob todt AMO 00 0 2noitou oy ot gnibnoooD 2apomi art rolo 000
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