26. Bacteria arecosifered to be ancestral for mitochondria and chloroplasts base

Question

26. Bacteria arecosifered to be ancestral for mitochondria and chloroplasts based on endosymbiotice theory Il, are generally eukaryotes u kar oder odered to have more ongping horisonal transfer than nmuliclluiar more ongoning horizontal transfer than multicellular typically have smaller genomes than multicellular eukaryotes D. all of the above E.^and B, but not C 27. selection on the parental generation)? qual (where h s narow sense heritability and S is the strengh af A. variation in additive genetics multiplied by average excess fitness B. variati C. the squared product of heteroaygote fr on in phenotypic trait for the parental generation multiplied by the geographic area D, the difference between the mean trait value of the offspring and the starting mean (population response to selection) 28. If the half-life for a substance is 50 years How much of that substance will remain in its original form after 150 years has elapsed? A, 0% 11.12.5% ? 25% D.50% 29. 0n what continent did deforestation occur to select for many hominin features from Austrolopithecus, early Homo and onwards-up to and including those synapomorphies found for Homo sapien? A. Africa B. Asia C. Australia D. Europe 30. For speciation, what process is typically considered to occur between geographic separation and reproduction isolation? A. endosymbiosis B. alternative supercoling C. evolutionary reversal D. reinforcement 31. Which of the following relate(s) to non-random events, related to fitness or differential reproductive success within an existing and interacting large population? A. sexual selection B genetic drift C natural selection D, a and c E b and c 32 Stromatolites are thought to have originated fronm A miniature volcanoes Boating mats of bacteria C earthquakes. D. isotopic decay

Explanation / Answer

Q26:- Option D ( All of the above)

Explanation:- The bacteria are considered ancestors to mitochondria and chloroplast based on endosymbiotic theory. They show more horizontal gene transfer than eukaryotes and have less complex and smaller genome as compared to eukaryotes.

Q28:- Option B

Explanation:- Half life will be 12.5% . Half life is equal to 50 yrs so after 100 yrs it will be 25% then after 150 yrs it will be 12.5%

Q33:- Option D ( DNA/RNA)

Explanation:- The cellular genomes are made up of DNA and Splicing occurs in RNA during post transcriptional modification.

Q34:- Option C

Explanation:- Synapomorphies are share derived characters by two different lineages.

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