B1.2.1 Flashcards

1
Q

What is each long molecule of DNA

A

A chromosome

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2
Q

What is a gene

A

The short sections of DNA that code for characteristic are called genes.

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3
Q

What does DNA code for

A

The code a gene contains causes specific proteins to be made. These proteins determine the cells function.

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4
Q

What do combinations of genes do

A

Combinations of genes in an organism controls how the organism functions and what it looks like.

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5
Q

Structure of DNA

A

DNA is made up of two strands the two strands are joined together by bases. They are twisted together forming a double helix. DNA is a polymer as it’s made up of smaller nucleotides.

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6
Q

What are nucleotides made from

A

They are made up of a sugar (deoxyribose) a phosphate and a base.

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7
Q

What are the 4 bases

A

Adenine, Guanine, Thymine, Cytosine

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8
Q

Base pairs

A

Adenine always bonds to thymine
Cytosine always bonds with guanine

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