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TEAS > Science > Flashcards

Science Flashcards

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
Q

Incomplete dominance

A

Phenotype of offspring is blend of phenotypes of parents

26
Q

Codominence

A

Combination of phenotypes of parents

27
Q

Polymer

A

Macromolecule made of smaller units called covalent bondlinked monomers

28
Q

Hydrolysis

A

Process of breaking down bonds to break monomers

29
Q

What are some macromolecules

A

Carbs, lipids, proteins, nuclei acid

30
Q

Carbohydrate forms

A

Linear- long unbranched chains
Branched- shorter chains with branches
Helix shaped- coiled chains that form structures

31
Q

Lipids

A

Formed by linear arrangement of carbon atoms and hydrogen called fatty acid chains

32
Q

Enzymes

A

Proteins that catalyze biochemical reactions without being consumed by reaction.

33
Q

What are the four types of proteins

A

Enzymes
Transport
Structural
Storage

34
Q

Nucleic acids

A

Store and transmit genetic info

35
Q

Protozoans

A

Single celled micro organism in water, soil, air

36
Q

Eukaryotes

A

Cells with nucleus

37
Q

Vectors

A

Carry and transmit infectious agent

TEAS (1 decks)

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