In the S phase of meiotic interphase, each chromosome replicates, producing two copies of each allele, one on each chromatid, the homologous chromosomes segregation takes place in__

Which of the following statements is correct about the segregation of chromosomes?

a.If no crossing over has taken place, the two chromatids of each chromosome segregate in anaphase II and are identical

b. If crossing over has taken place, the two chromatids are no longer identical, and the different alleles segregate in anaphase II

c. If no crossing over has taken place, the two chromatids of each chromosome segregate in anaphase I and are identical

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#Question id: 18006

#Unit 11. Evolution and Behavior

During which geological period origin, first forests; lands plants well established?

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#Question id: 18007

#Unit 11. Evolution and Behavior

The following geological eras mark the advent of important events in the history of earth- origin of first vertebrates armored fishes, origin of First reptiles, origin of first dinosaurs;

a) Triassic b) Pennsylvanian

c) Ordovician d) Cambrian

Identify the correct match of the events with the geological era;

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#Question id: 18008

#Unit 7. System Physiology – Animal

The perception of a stressor triggers this area of the brain to initiate the stress response.

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#Question id: 18009

#Unit 7. System Physiology – Animal

Fleeing from or confronting a threat is known as ______.

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#Question id: 18013

#Unit 13. Methods in Biology

Each of five questions on a multiple-choice examination has four choices, only one of which is correct. The student is attempting to guess the answers. The random variable X is the number of questions answer correctly. Probability that the student will get At least one correct answer.

TLS Online TPP Program

#Question id: 18014

#Unit 13. Methods in Biology

Each of five questions on a multiple-choice examination has four choices, only one of which is correct. The student is attempting to guess the answers. The random variable X is the number of questions answer correctly. Probability that the student will get Atmost three correct answers