According to Patrick Forterre's hypothesis, viruses are ultimately responsible for ________
A) introducing DNA into the ancestors of Bacteria, Archaea, and Eucarya
B) fusing with a bacterium and giving rise to the eukaryote nucleus
C) introducing information-processing genes into the ancestral chronocytes
D) enabling Archaea to withstand extreme environmental conditions causing mass extinctions
A
You might also like to view...
What aspect of chromosome behavior most clearly accounts for Mendel's law of segregation?
A) movement of sister chromatids to opposite poles at anaphase II of meiosis B) movement of homologous chromosomes to opposite poles at anaphase I of meiosis C) crossing-over between homologous chromosomes during prophase I of meiosis D) replication of chromosomes prior to meiosis E) independent alignment of different homologous pairs on the metaphase I spindle
What term is used for multiple effects from a single gene?
a. expressivity b. continuous variation c. codominance d. pleiotropy e. multiple alleles
What features of a desert ecosystem control the communities which can survive in a desert?
A. amount of light B. temperature C. amount of water D. All answers are correct. E. amount of usable habitat
Blue flower color (B allele) is dominant to white (b allele). If a population of plants in Hardy-Weinberg equilibrium contains white flowers (bb) at a frequency of 0.04, what is the frequency of the heterozygous genotype?
A. 0.32 or 32% B. 0.64 or 64% C. 0.8 or 80% D. 0.2 or 20% E. 0.96 or 96%