my actual bio final flashcards

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True breeding

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Biology

9th

basically just all the vocab from every study guide hehe :DDD (sorry for length but at least its detailed huh)

228 Terms

1

True breeding

an individual that produces offspring identical to the parent.

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2

Polygenic inheritance

two or more different genes influencing one characteristic.

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3

Mutant

the version of a character that occurs less frequently.

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4

Wild-type

the version of a character that most commonly occurs in nature.

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5

Testcross

breeding a subject with unknown genotype and dominant phenotype with a recessive individual to determine the genotype of the individual.

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6

Hybrids

someone who is heterozygous for a trait.

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7

Meiosis

the splitting of somatic cells into gametes.

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8

Heredity

the study of genes along a timeline.

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9

Monohybrid cross

crossing two hybrids for one trait.

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10

Carrier

someone who is heterozygous for a recessive genetic disease, they dont have the disease but could pass it on to children.

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11

Pleiotropy

a gene that controls more than one physical trait.

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12

Linked genes

genes located near each other on a chromosome that tend to be inherited together.

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13

Pedigree

a family tree used to map traits and genotypes.

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14

character

a heritable feature that varies among members of a population.

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15

X-linked genes

genes linked to the x chromosome.

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16

Phenotype

the physical appearance of a person.

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17

Punnett square

a device used to predict crosses.

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18

Genotype

the actual genes someone has.

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19

Environmental influence

Environment can change someone’s phenotype.

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20

Alleles

genes that code for different traits.

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21

Genetic map

a listing of the relative listings of genes along a chromosome.

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22

Recombinant progeny

children with a different allele combination than their parents.

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23

Genetics

the study of genes and inheritance.

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24

Recessive allele

a version of an allele that will only show if two are present.

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25

sex-linked gene

a gene on the x or y chromosome

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26

Dihybrid cross

crossing two individuals heterozygous for two traits.

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27

Recombination frequency

the probability that genes will recombine.

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28

Dominant allele

an allele that will show if there is only one present

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29

F1 generation

the first generation of children after a cross

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30

F2 generation

the generation of children after crossing the F1 generation

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31

Heredity

the study of genes along a timeline

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32

Locus

a location or position

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33

P generation

the subjects that are being crossed in a cross

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34

Trait

a characteristic

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35

Cell specialization

When certain cells are designed for specific functions

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36

vacuole

A large vesicle with a variety of functions within the cell.

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37

Organ

Multiple tissues working together to perform a specific task

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38

Organ system

Multiple organs working together to perform vital life functions

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39

isotonic

A solution outside of a cell which has the same concentration of solute as the solution inside of the cell

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40

Hydrophilic

Being attracted to water

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41

Active transport

A way of letting large molecules across the cell membrane with the use of energy

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42

endocytosis

A form of active transport that takes large matierials into the cell.

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43

Semipermeable

Allowing some things to pass but not others

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44

multicellular

consisting of multiple cells

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45

vesicles

a sac made of membrane in the cytoplasm of a eukaryotic cell

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46

organ systems

multiple organs functioning together to serve a specific purpose

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47

organism

An individual living thing

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48

diffusion

the random movement of particles resulting in the net movement of a substance down its concentration gradient

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49

lipid bilayer

a double layer of lipids

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50

passive transport

The transport of a substance across the cell membrane through diffusion without using energy

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51

Exocytosis

When a substance leaves a cell by a vesicle fusing with the cell membrane

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52

Positive feedback loop

A form of regulation where a change to homeostasis is amplified

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53

organelle

A specialized part of a cell

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54

homeostasis

The steady state of bodily functioning

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55

Unicellular

Consisting of one cell

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56

hypotonic

A solution that, when surrounding a cell, has a lower concentration than the concentration of solution inside the cell

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57

Osmosis

The movement of water through a selectively permeable membrane

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58

concentration

The amount of solute in a solution

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59

transport protein

a protein that aids in transporting things across the cell membrane

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60

permeable

allowing things to pass or diffuse through

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61

Negative feedback loop

a form of homeostasis where a change to homeostasis is worked against

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62

Prokaryote

a type of cell without a nucleus or any membrane bound organelles

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63

tissue

a group of cells working together to serve the same function

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64

central vacuole

A large vacuole that stores water in plant cells

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65

hypertonic

when the concentration of a solute is higher outside of a cell than inside of a cell

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66

hydrophobic

does not dissolve in water/repels water

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67

facilitated diffusion

diffusion with the help of a protein; used for polar or larger molecules

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68

turgor pressure

a pressure exhibited by a plant cell's cell wall making sure the cell does not gain too much water and burst

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69

impermeable

not allowing anything to pass

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70

tonicity

the ability of a solution surrounding a cell to cause the cell to gain or lose water

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71

Homeostasis

the steady state of bodily functioning.

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72

Theory

a widely accepted idea broader than a hypothesis.

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73

Ecosystem

all the organisms in a given area.

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74

Organism

an individual living thing.

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75

Hypothesis

a testable explanation for a set of observations based on the available data.

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76

Biosphere

the entire portion of Earth inhabited by life.

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77

Emergent properties

new properties that arise as you go up the hierarchy of life.

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78

Population

a group of individuals belonging to a species that live in the same geographic area and can be potentially interbred.

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79

Independent variable

a factor with a variable changed to reveal effects.

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80

Dependent variable

a factor that is measured.

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81

Matter

anything that occupies space and has mass

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82

Element

a substance that cannot be broken down to other substances by chemical means

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83

Compound

a substance containing two or more elements in a fixed ratio

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84

Trace Elements

an element required for life in small amounts

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85

Proton

a subatomic particle with a positive charge

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86

Electron

a subatomic particle with a negative charge

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87

Neutron

a subatomic particle with no charge

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88

Nucleus

an atom’s central core which contains protons and neutrons

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89

Atomic Number

the number of protons in an atom of a particular element

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90

Mass Number

the amount of protons and neutrons in a cell’s nucleus

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91

Atomic mass

the total mass of an atom

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92

Isotopes

an atomic form of an element with the same number of protons but different amounts of neutrons

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93

Ionic bond

a bond between opppositely charged ions

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94

Covalent bond

a chemical bond where two atoms share valence electrons

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95

Molecule

two or more atoms held together by covalent bonds

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96

Electronegativity

the attraction of an atom for electrons of a covalent bond

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97

Ion

an atom with an electrical charge

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98

Salt

a compound resulting from the forming of an ionic bond

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99

Hydrogen bond

a weak chemical bond formed when the slightly positive hydrogen atom of a polar covalent bond in one atom is attracted to the slightly negative atom of a polar covalent bond in another molecule

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100

Polar molecule

a molecule containing polar covalent bonds and having an unequal distribution of charges in different regions of the molecule

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