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59 Cards in this Set

  • Front
  • Back

DNA

Deoxyribonucleic acid. First discovered by Crick and Watson.

Adenine matches?

Thymine

Guanine matches?

Cytosine

DNA stores information instructions in a

double helix structure

Is DNA complimentary? (know one know both)

Yes. A=T and G=C

1 DNA molecule has how many base pairs?

200 million

How many chromosomes does each parent give?

23

Chromosomes are?

Unique, specific traits.

Genes are?

sequences of code for one specific product.

Allele are?

Alternative versions of the same gene. (this determines traits)

Is all DNA equal?

No.

DNA that does not produce proteins is called...

Non-coding DNA.

What does non-coding DNA help to do?

It helps to regulate DNA.

Genotype?

A particular trait.

Phenotype?

Physical appearance of the trait. (Red flowers)

Transcription?

A copy is made.

Translation?

Copy is used to make a protein. mRNA used to direct production of protein in the cytoplasm.

Steps for making DNA.

1)Recognize and bind. (RNA polymerase recognizes promotor and binds to strand)


2)Transcribe. Unwinds and copies making mRNA.


3)Terminate. (stop copying. Release mRNA)


4)Cap/process. (cap tail added to protect and recognize)

Amino acids and ribosomes are required for?

Translation.

Translating molecules translate...

the mRNA code into amino acids.

3 steps to translation.

Recognize. Longate. Terminate.

What is a genome?

All genes possessed by an organism.

Positive control

Start or speed up of transcription

Negative control

block or slow down transcription

Mutations

Alteration in the sequence of bases in DNA. (can be helpful or harmful or neutral)

Non sex-cells mutations cannot...

be passed down to offspring.

Types of mutations

Substitution, insertion, delation

Chromosomal aberration

change to the organization of genes

Biotechnology

modifying cells and molecules

Genetic engineering

adding, deleting transplanting genes

Mutation?

alteration of the base-pair sequence of an individuals DNA.

somatic cells?

the cells forming the body of an organism are not passed from parent to offspring.

Reproductive cells?

There are passed from parent to offspring.

How are mutations caused?

Radiation or chemicals in the environment or spontaneously.

Genetic drift?

Random change in allele frequency in a population. It is much greater in smaller populations.

Fixation-

When an alleles frequency in a population reaches 100%.

Founder effect-

New population has a different allele frequency.

Bottle neck effect-

A large potion of a population die out.

Migration or gene flow-

The movement of some individual species from one population to another.

Natural selection-

1. There must be variation for the trait within a population.


2. That variation must be heritable (that is, capable of being passed from parents to offspring).


3.Individuals with one version of the trait must produce more offspring than this with a different version of the trait.

Inheritance or heritability is

The transmission of traits from parents to their children.

Differential reproductive success-

from all the variation existing in a population, individuals with traits most suited to survival and reproduction in their environment generally leave more offspring than do individuals with other traits.

Learned behaviors

From the environment, acquired, altered, and modified over time.

Instinct or innate behaviors-

don't require environment. Example is fixed action pattern. Goose getting an egg.

Choosy mates-

1

Altruistic behaviors-

seem to come at a cost to the individual performing them while benefiting a recipient.


This includes squirrels sounded an alarm when a bird comes. caller is killed by predator.

Kin selection-

individual gives itself up for the community.

Individual fitness-

Reproductive output that individual's bring about through their seemingly altruistic behaviors. This redefined measure of fitness is call inclusive fitness.

Inclusive fitness-

Mother and fetus interest differ when it comes to food.

Evolve kin section-

Repeated interaction, benefits greater than cost, recognize and punish cheaters.

Mismatch environment-

creature in a situation where they have to adapt.

The sex with greater energetic input will be more discriminating.

The sex with the lower energetic input will compete among themselves for the higher sex.

Mate guarding-

Long mating. Males block the mating passage.

Polygamy-

Multiple mates

Polygyny-

individual males mate with many females

Polyandry-

Individual female with many males

Monogamy-

one mate

Communication types-

Chemical, acoustical, visual.

Evolution-

Genetic change in a population.