Homologous traits Study guides, Class notes & Summaries

Mitosis - ANSWER-• the duplication and division of the nucleus • results in clones with *no* variation or adaptation • takes place in somatic cells (non-sex cells) • starts with one cell and creates 2 identical daughter cells • replicated chromosomes are evenly divided so that each daughter cell receives a complete set (46 chromosomes) • *can occur by itself*, but usually involves cytokinesis • not synonymous with cellular division • single-celled prokaryotes and single c...

AP Biology Exam Questions and Answers Graded A+ What are the 2 theories of evolution? Explain each Gradualism- geologic changes result from slow, gradual, continuous process Punctuated Equilibrium- Long period of stasis punctuated by short bursts of significant change. What was Lamarck's theory and why was it wrong? Lamarck = Inheritance of Acquired characteristics- traits acquired during lifetime could be passed on What is natural selection Comptetition for limited resources re...

Which of the following is a true statement about a human zygote? correct answers This diploid cell contains all of the genetic information for the individual it will become. Which of the following sets of statements is true of a homologous pair of chromosomes? correct answers They have the same genes but unique alleles. One member of the pair is inherited from each parent. Can the expression of highly heritable traits, such as maze-running ability in rats, be influenced by environment? Why...

what vector(or agent in the environment) transmits malaria? - Answer- the anopheles mosquito at the microscopic level, we can see that the phenotype of round versus wrinkled seed: - Answer- heterozygotes have 50% of the protein as homozygote domains how many letters (nucleotides) of the genetic code are needed to specify a specific amino acid? - Answer- 3 Hippocrates first explained heredity by suggesting that "seeds" are produced by the body and then collected and transmitted at the ...

Biogeography Analogous structures - Structures that look the same, but not because they shared a common ancestor homologous structures - Structures that look the same because they did share a common ancestor James Hutton - Geologist that believed in deep time (meaning the earth is super old). Charles Lyell - Believed earth of 4.6 billion years old Got idea from James Hutton Carl Linnaeus - Created binomial nomenclature Alfred Wallace - English contemporary to Darwin Published his resea...

Brooks Biological Principles Exam 3 Questions and Answers Mitosis - Answer- • the duplication and division of the nucleus • results in clones with *no* variation or adaptation • takes place in somatic cells (non-sex cells) • starts with one cell and creates 2 identical daughter cells • replicated chromosomes are evenly divided so that each daughter cell receives a complete set (46 chromosomes) • *can occur by itself*, but usually involves cytokinesis • not synonymous with ...

Iteroparous Species that reproduce multiple times during their lives (ex: humans, dogs, Semelparous Species that reproduce only once in their life, but may produce MANY offspring during that one, Iteroparity A survivorship pattern related to reproductive patterns; often typical of organisms whose survival chances increase once they reach maturity, Semelparity A survivorship pattern related to reproductive patterns; often typical of organisms with type 3 survivorship, Phylogeny a synonym for ...

Natural Selection - Answer-A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits. Evidence of Evolution - Answer-1) Fossil Record 2) Embryology 3) Homologous Structures 4) DNA 5) Vestigial Structures common ancestor - Answer-the most recent ancestral form or species from which two different species evolved homologous structures - Answer-Structures in different species that are simila...

AP Biology Semester 1 Review Latest Update Graded A+ 3 phases of transcription initiation, elongation, termination 3 steps of protein synthesis transcription, RNA processing, translation 5' cap The end of a pre-mRNA molecule modified by the addition of a cap A site One of a ribosome's three binding sites for tRNA during translation. Holds the tRNA carrying the next amino acid to be added to the polypeptide chain. acid any substance that dissociates in water to increase the c...

Disjunction ANSWER : the separation of chromosomes during the anaphase stage of cell division Non-disjunction ANSWER : Error in meiosis in which homologous chromosomes fail to separate. Aneuploid ANSWER : Abnormal number of chromosomes. Phenotype ANSWER : An organism's physical appearance, or visible traits. Meiosis ANSWER : •Cell division that produces reproductive cells in sexually reproducing organisms •The process of cell division in gametogenesis or sporogenesis during w...