Science Flashcards

(37 cards)

1
Q

Chromosomes

A

Long, tread like structures in nucleus

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2
Q

How many chromosomes are in every cell

A

46

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3
Q

Genes

A

Basic units of heredity

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4
Q

What are genes responsible for

A

Characteristics

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5
Q

What types of genes are there

A

Structural
Regulatory

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6
Q

What are structural genes responsible for

A

Physical traits

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7
Q

What do regulatory genes do

A

Control activity of genes

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8
Q

DNA

A

Deoxyribonucleic acid

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9
Q

What are four bases of DNA

A

Adenine
Thymine
Guanine
Cytosine

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10
Q

Base pair

A

Two nucleotides bonded together with hydrogen bonds

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11
Q

Codon

A

Three nucleotides that code for a specific amino acid

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12
Q

RNA

A

Translate genetic code of DNA into protien

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13
Q

Translation

A

Making protein from RNA

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14
Q

Transcription

A

Making RNA from DNA

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15
Q

RNA polymerase

A

Enzyme catalyzes formation of RNA from nucleotides

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16
Q

What are types of RNA

A

Messenger- Carrie’s genetic code in nucleus to ribosomes
Transfer- assemble amino acid into protein in translation of genetic sequence
Ribosomal- make up ribosomes

17
Q

mRNA

A

Attaches to small subunit of ribosome

18
Q

tRNA

A

Brings amino acids to ribosome

19
Q

Codon

A

Group of 3 nucleotides

20
Q

Mendels law of inheritance

A

Two alleles for each trait

21
Q

Alleles

A

Alternate forms of gene

22
Q

Genotype

A

Combination of two alleles

23
Q

Heterozygous

A

Chromosomes contain 2 different alleles for trait

24
Q

Homozygous

A

Chromosomes contain 2 identical alleles

25
Incomplete dominance
Phenotype of offspring is blend of phenotypes of parents
26
Codominence
Combination of phenotypes of parents
27
Polymer
Macromolecule made of smaller units called covalent bondlinked monomers
28
Hydrolysis
Process of breaking down bonds to break monomers
29
What are some macromolecules
Carbs, lipids, proteins, nuclei acid
30
Carbohydrate forms
Linear- long unbranched chains Branched- shorter chains with branches Helix shaped- coiled chains that form structures
31
Lipids
Formed by linear arrangement of carbon atoms and hydrogen called fatty acid chains
32
Enzymes
Proteins that catalyze biochemical reactions without being consumed by reaction.
33
What are the four types of proteins
Enzymes Transport Structural Storage
34
Nucleic acids
Store and transmit genetic info
35
Protozoans
Single celled micro organism in water, soil, air
36
Eukaryotes
Cells with nucleus
37
Vectors
Carry and transmit infectious agent