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Theory of Evolution
| Question | Answer |
|---|---|
| what are amino acids ? | small molecules that are the components of proteins |
| a sequence of 3 nucleotide bases in a DNA molecule that codes for a specific type of amino acid to be assembled in the protein synthesis process | a codon . |
| What is a biospecies ? | a species that has been defined on the basis of the ability to produce fertile offspring. |
| genetic change in a population of organisms that occurs over time. The term is also frequently used to refer to the appearance of a new species ? | Is the term called evolution. |
| What are fossils ? | any remains or traces of an ancient organism. Examples of fossils are mineralized bones and casts and imprints of plants or animals. |
| What are genetics ? | the study of gene structure and action and the patterns of inheritance of traits from parent to offspring. |
| group of single celled animal species. Protozoa are classified as being members of the kingdom Protista ? | Protozoa . |
| what is genus ? | a group of closely related species. In the Linnaean classification system, genus is the category immediately above species. |
| specific micro-habitats in nature to which populations or organisms adapt. They are usually seen in terms of being food getting opportunities in the environment ? | they're called ecological niches . |
| Binomial nomenclature ? | in taxonomy, the convention established by Carolus Linnaeus whereby genus and species names are used to refer to species. |
| the relatively rapid expansion and diversification of an evolving group of organisms as they adapt to new ecological niches ? | Adaption radiations . |
| What is vertebrates ? | members of the animal subphylum Vertebrata. Vertebrates possess a spinal chord protected by a segmented vertebral column of cartilage and/or bone. |
| referring to the full component of chromosomes normally found in somatic cells. In humans, the number is 46 ? | they're diploid numbers |
| is a domiant allele ? | an allele that masks the presence of a recessive allele |
| the twisted ladder shape that is characteristic of DNA molecules ? | double helix. |
| another term for down syndrome ? | genetically inherited form of mental retardation usually resulting from the inheritance of an extra autosome 21. |
| a usually recurrent disorder of the brain characterized by abnormal electrical activity which causes mental and physical dysfunction ? | epilepsy . |
| what is fertilization ? | the process of sexual reproduction by which the chromosomes from a sperm cell enter the nucleus of an ovum and combine with its chromosomes to create a zygote. |
| the number of times that something happens. For example, the number of people out of 100 who get divorced would be the frequency of divorce ? | frequency. |
| Genetic drift ? | evolution, or change in gene pool frequencies, resulting from random chance. |
| the situation in which a population is not evolving from generation to generation--that is, the population's gene pool frequencies remain unchanged ? | genetic equilibrium . |
| is called heterosis ? | increased health of individuals who are the result of negative assortative mating, or crossbreeding. |
| the viruses that are responsible for causings AID's ? | it's called HIV. |
| what's an ovum ? | the female sex cell or gamete. |
Created by:
Andriyeli
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