Shared Flashcard Set

Details

Genetics
Genetics Unit Vocabulary
58
Science
7th Grade
05/24/2011

Additional Science Flashcards

 


 

Cards

Term
Characteristic
Definition
a physical trait such as eye color or hair color
Term
Gene
Definition
small segment of DNA that carries hereditary information
Term
Genetics
Definition
the study of how certain features are passed down from a parent to their offspring
Term
Hereditary
Definition
the passing of traits from parents to offspring
Term
Inherited
Definition
to receive (a characteristic) from one's parents by genetic transmission
Term
Trait
Definition
a distinguishing quality that all members of a species have in common; can also be a specific feature such as tail color or leaf color (the examples we studied in class)
Term
Offspring
Definition
the children of a person, animal, or plant considered as a group
Term
Asexual Reproduction
Definition
reproduction that only involves one parent and in which the offspring is genetically identical to the parent
Term
Sexual Reproduction
Definition
reproduction that involves two or more parents and which the offspring have genetic characteristics of both parents
Term
Cell
Definition
the basic unit of structure of all living things-the smallest unit in which life processes can be carried out
Term
Clone
Definition
a group of genetically identical cells or organisms derived from a single cell or individual by some kind of asexual reproduction
Term
Egg Cell
Definition
the female reproductive cell
Term
Fertilization
Definition
creation by the physical union of male and female gametes (gametes-a mature sexual reproductive cell)
Term
Mutation
Definition
an organism that has characteristics resulting from a change in the structure of the chromosome; most are harmful to the organism
Term
Nucleus
Definition
the cell's control center; it stores the cell's genetic information (chromosomes) and controls the cell's function
Term
Sperm Cell
Definition
the male reproductive cell
Term
Allele
Definition
either of a pair (or series) of alternative forms of a gene that can occupy the same location on a particular chromosome and that control the same characteristic (for example TT, tt, or Tt)
Term
Inherit
Definition
receive by genetic transmission from parents
Term
Dominant
Definition
producing the same phenotype whether its allele is identical or dissimilar (for example, Tt would produce a blue tailed organism)
Term
Recessive
Definition
gene that produces its characteristic phenotype only when its allele is identical (for example, tt would produce an orange tailed organism)
Term
Probability
Definition
The likelihood that a particular combination of phenotypes will be inherited. For example, the likelihood of a blue tail was 3:1 in the third generation.
Term
Punnett square
Definition
A graphic organizer used to chart the possible combination of genotypes.
Term
Genotype
Definition
The genetics characteristic of inheritance.
Term
Phenotype
Definition
The physical appearance
Term
Homozygous
Definition
Only one type of allele
Term
Heterozygous
Definition
Having different alleles from each parent for a particular gene.
Term
Chromosome
Definition
Structures that direct cells growth and reproduction and hold the genetic information that is passed on to new cells.
Term
Cell division
Definition
The process in reproduction and growth by which a cell divides to form daughter cells.
Term
DNA
Definition
The molecule within a cell that carries the genetic information of an organism.
Term
"Nature v. Nurture"
Definition
The idea that both genetics and environment play a role in the development of organisms.
Term
climate
Definition
the weather conditions over many years
Term
description of weather conditions
Definition
sunny, cloudy, stormy, humid, dry, hot, cold
Term
humidity
Definition
water vapor in the air
Term
humid subtropical
Definition
description of our climate in Lakeland
Term
water vapor
Definition
warm air holds more of this than cold air
Term
dew
Definition
forms on the grass, trees, cars, etc. when the air temperature drops during the night
Term
dew point
Definition
point at which the air must be cooled before it condenses some of its vapor into droplets
Term
weather
Definition
current conditions or what outdoor conditions are like at any given moment
Term
fog
Definition
stratus clouds that form near the ground
Term
cumulonimbus
Definition
the kind of clouds that are very tall, flat on top, and associated with lots of rain, thunder, and lightning
Term
stratus
Definition
a dull gray mass of clouds, solid and without any shape
Term
cirrocumulus
Definition
clouds that look like small puffs of cotton
Term
altocumulus
Definition
clouds that look like small puffs of cotton
Term
ice crystals
Definition
what makes cirrus clouds look wispy
Term
nimbus
Definition
means “heavy rain or rain cloud” in Latin
Term
alto
Definition
means high in Latin, but is used to describe the location of the middle-altitude clouds between 2000 and 6000 meters
Term
cirro
Definition
the prefix used to describe the highest clouds above 6000 meters
Term
cumulus
Definition
means “heaping or mass” in Latin and looks like these clouds are piled up
Term
stratus
Definition
means “stretched out or extended” in Latin and looks like a sheet
Term
cirrus
Definition
means “curl, filament, or tuft” in Latin
Term
oxygen
Definition
plants produce this gas as a waste product of photosynthesis
Term
plants
Definition
nitrogen is used by this organism for growth
Term
21%
Definition
the percentage of oxygen in the atmosphere
Term
oxygen and nitrogen
Definition
99% of air is composed of these two gases
Term
air has mass
Definition
the property of air demonstrated by measuring the mass of uninflated and inflated balloons on the triple-beam-balance
Term
air takes up space
Definition
the property of air demonstrated by the paper towel in the cup experiment
Term
stratosphere
Definition
has the layer of the atmosphere where most commercial air traffic takes place
Term
troposphere
Definition
the layer of the atmosphere closest to earth that contains most of the clouds where the temperature falls with increased altitude
Supporting users have an ad free experience!