Biology Flashcards

0
Q

What is a point mutation

A

A mutation the the letters of the DNA

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1
Q

How many chromosomes in a normal human karyotype

A

46

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2
Q

What is a chromosomal mutation

A

A mutation in the number of chromosomes

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3
Q

Genes contain instructions

A

Proteins

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4
Q

What is a genotype

A

The letters of a certain trait

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5
Q

What is a phenotype

A

The physical trait

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6
Q

What are restriction enzymes

A

The are chemical scissors that cut the DNA

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7
Q

What is Codominence

A

Where both traits are present

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8
Q

What is incomplete dominance

A

Where neither trait is dominant so they mix

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9
Q

What is a poly genetic trait

A

One where many genotypes are involved and many phenotype a are possible.

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10
Q

What is haploid

A

Half the number of chromosomes (23 for humans)

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11
Q

What is diploid

A

Twice the number of chromosomes(46 for humans)

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12
Q

Where was Charles Darwin influenced the most

A

The Galápagos Islands

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13
Q

What book did Darwin write

A

The origin of species

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14
Q

What is the short definition of evolution

A

Change over time

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15
Q

What are the 2 main sources of genetic variation

A

Mutation and crossing over

16
Q

What is the first and second word in a scientific name

A

Genus then species

17
Q

What do fossils show

18
Q

What kingdoms contain cell walls

A

Plantae fungi and bacteria

19
Q

What is homeostasis

A

Equilibrium and maintaining internal conditions

20
Q

What is metabolism

A

The sum of all total chemical reactions in an organism

21
Q

What are the monomers of proteins

A

Amino acids

22
Q

What is the function of proteins

A

To do stuff around the body

23
Q

What are the monomers of lipids

A

Fatty acids

24
Where are lipids located
The cell membrane
25
What are the monomers of deroxiribose nucleic acid
Nucleotide
26
What are the levels of organization
Atom Molecule cell tissue organ organ system organism population community ecosystem biosphere
27
What is the equation for photosynthesis
Water + c02 yields 02 and glucose
28
What is the equation for cellular respiration
Glucose + oxygen yields water and co2
29
What are the 2 categories of cells and what are they based on
Eukaryotic and prokyarotic. The presence or absence if a nuclear membrane
30
How many ATP molecules are made in glycolysis
2
31
What makes your muscles burn
A build up of lactic acid
32
What is the difference of products of mitosis and miosis
Mitosis makes 2 identical diploid cells and and miosis makes 4 haploid cells
33
What's the difference between a polymer and a monomer
Monomers make up polymers
34
What are the steps of miosis
PMAT
35
What is disruptive selection
When the middle trait is not favored and either extreme is favored
36
What is directional selection
When something is selectively bred for a certain trait
37
What is stabilizing selection
When the extremes are dropped and the middle trait is favored