Midterm

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1
Assumption 1 of natural selection
More offspring produced than can survive
2
Assumption 2 of natural selection
Not all born can survive
3
Assumption 3 of natural selection
Traits are variable
4
Assumption 4 of natural selection
Traits are heritable
5
Asssumption 5 of natural selection
Some traits improve likelihood of survival
6
How is trait variation inherited?
Cell division
7
Where does genetic variation come from?
Recombination, translation, epigenetics, horizontal gene transfer
8
Process in meiosis where chromosome pairs exchange genetic info, resulting in a novel combo of DNA from mother and father
Recombination
9
Change in base-pair sequence of an organism
Mutation
10
What type of mutation occurs when a single base nucleotide is replaced with another?
Point mutation
11
What type of mutation occurs when base pairs are added or deleted?
Insertion/deletion
12
What type of mutation occurs when sections of the genome are doubled?
Duplication
13
What type of mutation occurs when one piece of a chromosome is transferred to another?
Translocation
14
What type of mutation occurs when the DNA sequence is reversed?
Inversion
15
Changes in gene expression caused by certain base pairs in DNA & RNA being turned off/on
Epigenetics
16
Transfer of genes between organism via another method than reproduction (common in bacteria)
Horizontal gene transfer
17
Central dogma of biology
DNA Is the molecule of inheritance
18
What process converts DNA to RNA?
Transcription
19
What process converts RNA to proteins?
Translation
20
What is the function of the cell wall?
Structure and support
21
What is the function of the cell membrane?
Transports materials in/out of cell
22
What is the function of the cytoplasm?
Holds everything together
23
What is the function of the rough endoplasmic reticulum?
Synthesizes proteins
24
What is the function of the smooth endoplasmic reticulum?
Synthesizes lipids
25
What is the function of ribosomes?
Synthesizes and translates RNA
26
What is the function of the vacuole?
Water storage
27
What is the function of the nucleus?
DNA replication, transcription, and RNA processing
28
What is the function of the mitochondria?
Cellular respiration
29
What is the function of the chloroplast?
Photosynthesis
30
What is the function of the Golgi body?
Processes and distributes proteins
31
What is the tissue responsible for primary growth?
Apical meristem
32
What is the tissue responsible for secondary growth?
Lateral meristem
33
Cork cambium
Bark
34
Vascular cambium
Woody tissue expansion
35
Entire segment of primary shoot
Metamer
36
What are the three components of the vascular bundle?
Xylem, phloem, cambium
37
Which vascular tissue is dead?
Xylem
38
Which vascular tissues are alive?
Phloem and cambium
39
Meristem tissue that regenerates and produces an identical mother/daughter cell
Initials
40
Does xylem or phloem divide more frequently?
Xylem
41
Generates axially (transversely) oriented cells in stem
Fusiform initials
42
Generates radially oriented cells in the stem
Ray initials
43
Which direction is periclinal growth?
Radial
44
Which direction is anticlinal growth?
Tangential
45
What hormone regulates bud release?
Auxin
46
Does strong apical control or apical dominance result in greater lateral growth?
Apical control
47
Does strong apical control or apical dominance result in less lateral growth?
Apical dominance
48
More efficient light interception and snow shed
Apical dominance
49
Optimal light capture
Apical control
50
Programmed cell death
Apoptosis
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