Genetics Test 1
Terms
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- The act of combining DNA from two parents into a single cell is known as
- reproduction
- molecules and structures that detect stimuli are called
- receptors
- what is the smallest unit of life
- cell
- similar organisms living in groups are dfined as
- populations
- development is guided by
- DNA
- organisms use ________ to maintain homeostasis and growth
- ATP
- which of the following are producers
- Eubacteria, plantae, fungi, archaebacteria
- if the form of a trait improves the chances for solving and reproducing in a given environment it is an ______ trait
- adaptive
-
you have some number of trats that also your great grandfather had
this is an example of - inheritance
- for many years in a row, a dairy farmer allowed his best cows to mate. over enerations milk production of milk went up. this is an example of
- artificial selection
- a _________ is any observable property of an organism
- trait
- the study of heredity
- genetics
- what are the four nitrogeneous bases of DNA
-
adenine
guanine
thymine
cytosine - proteins are composed of micromolecules called
- amino acids
- someone who doesn't think that smokng, drugs, drinking does not cause birth defects
- hereditarianism
- when examining a group of cows living together at the farm a ________ _________ would study how migration, herd size, and naturally selected traits influence genetic variation
- population genetisist
- what is cows, pigs, horses, chickens, and farmers living together defined as
- a community
- what is the capacity of cells to extract energy from sources in their environment
- nutrient cycling
- what is occuring when the internal environment of an organism is being maintained within tolerable limits
- homeostasis
- recepters detect energy in a specific form known as
- stimuli
- all the farm animals, the farmers, the funky smell, and the hot sun is defined as
- an ecosystem
- which type of genetics studies the transfer of genes from parents to offspring
- transmission genetics
- all of the earth, which contains life, is called
- biosphere
- the capacity to evolve is based on variations in heritable traits, which originally arise through
- mutation
- DNA molecules
-
*contain instructions for traits
*undergo mutation
*transmitted from parents to offspring - DNA is 2 strands twisted in a
- double helix
- who showed that traits are passed through inheritance?
- mendel
- the attempt to improve human species by selective breeding is known as
- eugenics
- which type of genetics uses recombinant DNA technology to identify, isolate, clone, and analyze genes?
- molecular genetics
- who are the four scientists responsible for discovering DNA?
- Watson, Crick, Wilkins, Franklin
- DNA stands for
- deoxyribonucleic acid
- a ________ is used to trace patterns of inheritance in human families
- pedigree
- when visiting a cytogenetisist a _________ is used to reveal abnormalities in chromosomes
- karyotype
- eugeneicists like Galton coined the term _________
- miscongenation
- The fungi growing on a rotting log is an example of a _________
- decomposer
- when a scientist is examiningthe eating patterns of snkes throughout Michigan and only examines snakes n the upper Peninsula, it is fair to say that the scientist has made a __________ _________
- sampling error