for mrs.while’s test ch5 about mendel

Question Answer
heredity passing of traits from parents to offspring
alleles diffrent forms of a trait, gene pairs
mendel an austrian monk who loved gardening started to figure out genetics in 1856
hybrids a cross between two slightly diffrent traits of two parents
genotype genetic makeup of an organism
phenotype physical appearence of an organnism
heterozygous an organism with diffrent alleles
how many genes control your skin colour 3-6
polygenetic inheritance accurs when a group of gene pairs work together to produce a trait
Is WW possible in a cross between RW and RR NO
traits are determined by more than one gene yes

Science stack baii

Question Answer
What is Genetics The study of how traits or characteristics are inherited
Name some EXAMPLES of inherited characteristics Height, Eye Colour, Length of eyelashes, Shape of Face
Name some EXAMPLES of non-inherited characteristics Interest in sport, writing, reading, riding a bike, using a computer
What are chromosomes Thread-like structures made of DNA and protein found in the nucleus of cells
What are Genes Short sections of DNA located on chromosomes
How many chromosomes are in a zygote? 48
How many chromosomes are taken from each parent? 23

Chapters 17, 18, and 19 Test

Question Answer
organisms change over time. conclusion by Darwin
evolution that focuses on changes in the gene pools of populations microevolution
evolution that focuses on changes that give rise to new species macroevolution
a change in the genetic characteristics of a population of organisms over time. evolution
differences in DNA sequences between the individuals in a population. Results of Mutation
Arise from mutation different alleles
new individuals contribute their alleles to the gene pool of a population gene flow
Chance events that affect the survival and reproduction of individuals in a population genetic drift
Three quarters of the flowers will be gray and one-quarter will be white. phenotype frequency of progeny of heterozygotes
is the principal cause of evolutionary change. variation acted on by natural selection
Evidence that support the hypothesis because dark-colored mice were attacked more in light environments and light-colored mice were attacked more in dark environments adaptation by natural selection
Natural selection acted on the genetic variability present in the organism’s genomes.; evolution
Adaptation by natural selection nonrandom selection
Evidence that a humans and chimpanzees share a recent common ancestor homologous structures
Number of individuals in a population with 200 alleles for each gene 100
The frequency of q when p= 0.8 0.2
Genotype frequency genotype/total genotypes
Rate of evolution of an organisms that reproduces slowly slow evolution
Effect of stable environmental conditions on evolution does not stimulate evolution
high mutation rate of HIV. stimulate rapid evolution leads drug resistance
appear without regard to environmental pressures mutations
makes the genetic composition of the two populations more similar. gene flow
Greater effect on small populations than on large populations genetic drift
Frequency of an allele = 1 allele fixation by genetic drift
Bottleneck effect type of genetic drift
loss of genetic variation
Stabilizing selection emliominatoin of extreme in a bell curve

Atomic Stuff

Name Symbol
Manganese Mn
Mercury Hg
Neon Ne
Nickel Ni
Nitrogen N
Oxygen O
Phosphorus P
Platinum Pt
Potassium K
Radon Rn
Silicon Si
Silver Ag
Sodium Na
Sulfur S
Tin Sn
Titanium Ti
Tungsten W
Uranium U
Zinc Zn
Zirconium Zr

science vocabualry

Question Answer
pitch a measure of how high or low a sound is perceived to be, depending on the frequency of the sound wave
sonic boom explosive sound heard when a shock wave from an object traveling faster than the speed of sound reaches a person's ear
ultrasonic frequency's that are above 20,000 Hz
infrasonic frequency's that are elow 20 Hz
decibel most common unit used to measure loudness
loudness extent to which a sound can be heard
echo reflected sound wave
echolocation process of using reflected sound waves to find objects
Doppler Effect observed change in the frequency of a wave when the source or observer is moving
reflection bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not go through
diffraction change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening
refraction bending of a wave as the wave passes between two substances in which the speed of the wave differs
interfernce combination of two or more waves that results in a single wave

science

Question Answer
The flow of energy from one material to another;also called thermal energy. heat
A force between two surfaces rubbing against each other;waorks againest motion (example: rubbing your hands together). friction
a material that does not allow heat energy electricity to pass thorough it easily,blocks the transfer of heat or electricity (examples of heat insulators: wood,plastic cloth) insulators
a material that allows heat energy or electricity to pass through it easliy(examples iron,copper,and othermetals) conductor
the movement or tranfer of heat between solids that touch each other (example:ice cube in your hand melts from the heat of the hand,your hand becomes cooler from the ice cube) convetion
the movement of heat energy through liguids and gasses in currents conduction
the movement of energy through space as waves (example:sun,fire) radidation
to move one thing ( person or place) to another transfer

Matter Types and Components for Quiz #1

Question Answer
The state of matter that has no definite shape and takes up no definite amount of space Gas
The state of matter that has a definite shape and takes up a definite amount of space Solid
The state of matter that takes the shape of its container and takes up a definite amount of space Liquid
The small bits or portions that matter is made up of Particles
Everything in the universe that has mass and takes up space Matter
The amount of matter something contains Mass

Matter Properties and Changes Quiz #2

Question Answer
The amount of space that matter takes up Volume
The property of matter that compares the amount of matter to the space it takes up Density
A mixture in which particles of different kinds of matter are mixed evenly with each other and do not settle out Solution
To form a solution with another material Dissolve
Any change in size, shape, or state of a substance Physical Change
A change that produces one or more new substances and may release energy Chemical Change

4th grade science Macmillan/McGraw-Hill

Question Answer
cell smallest unit of living matter
what all living things need food, water, oxygen, shelter
organism living thing
5 jobs of all organisms reproduce, offspring, food for energy, get rid of waste, react to changes in the environment
oxygen gas in air
reproduce to make copies of themselves
offspring young of living things
plant properties cell wall is box shape, chlorophyll
animal properties cell membranes round
tissue many cells grouped together doing a job
largest organ skin
organ system serveral organs to preform life functions
bacteria smallest cell of all
microscope makes small things look bigger
viruses cannot reproduce on their own, smaller than a cell
thick protective cell wall plant cells
thin membrane and no cell wall animal cells
reason why plant cells need a thick protective coating plant cells need a thick protective coating to prevent viruses from getting to the nucleus and taking control
why do plants cells need more protection than animal cells plants cannot move on their own so their cells need more protection. Also, thick cells walls may make it easier for plants to store food for long periods of time

Vocabulary words for science olympiad event

Question Answer
Pandemic An epidemic occuring over a very wide area.(Usually effecting a large proportion of the population.)
Public Health Surveillace The systematic collection, analysis. interpretation, and dissemination of health data to gain knowledge of the pattern of disease occurence in order to control and prevent disease on the comommunity.
Fomite A physical object that serves to transmite and infectuous agent from person to person.
Control Group A selected group that has similar characteristics to the sick group but is not ill.
Risk Probability that an individual will be affected
Cluster An aggregation of cases over a particular period closely grouped in time and space regaurdless of whether the number is more than expected number.
Attack Rate The rate that a group ecperienced an outcome of illness= number of sick divided by total in that group.
Vector An animate intermediary in the indirect transmission of an agent that carries the agent from reservroir to a susceptible host.
Outbreak localized epidemic, more cases of a particular disease than expected in a given area or among a specialized group of people over a particular period of time.
Zoonosis an infectuous disease that is transmissable from animals to human
Epidemic large numbers of people over a wide geographic area affected.