During which phases of the cell cycle do the chromosomes exist in a doubled state?

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#Question id: 3631

#Unit 8. Inheritance Biology

Six different mutations 1 to 6, from the following results of functional allelism tests whereby the mutants were crossed with each other, determine location of mutant gene.

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#Question id: 18895

#Unit 13. Methods in Biology

Degree of scattering in transmission electron microscope is a function of

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#Question id: 10569

#Unit 6. System Physiology – Plant

Plants that grow in saline environments, called

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#Question id: 12374

#Unit 10. Ecological Principles

The process in which pioneer species colonize a bare substrate such as rock, sand, or glacial till is known as

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#Question id: 3541

#Unit 8. Inheritance Biology

Blue follower is dominant over white flower and long pollen is dominant over short pollen. A plant with Blue flower and short pollen was cross with white flower and long pollen. All F1 offspring display blue flower and long pollen. What is the percent of F2 progeny showing blue flower and long pollen?