A black Labrador, Three phenotype of black, brown and yellow is control by non allelic gene interaction. Following some genotype

 The following conclusions were made

A. The 9:3:4 ratio obtained upon selfing of AaBb here indicates recessive epistasis

B. This is a recessive epistasis where homozygous bb is epistatic to A and a.

C. When Gene A and B incompletely link, It will be produced all phenotype black, brown and yellow upon selfing of AaBb

D. When Gene A and B incompletely link, test cross of AaBb will be produced all phenotype black, brown and yellow in ratio 1:1:2 respectively

Which of the following conclusions are correct?

#Question id: 10907

#Unit 6. System Physiology – Plant

The mechanism of phloem translocation in angiosperms is best explained by the pressure-flow model, this model is an example of,

#Question id: 10908

#Unit 6. System Physiology – Plant

The energy is necessary to move photosynthate from producing cells into the sieve elements. This movement of photosynthate is called

#Question id: 10909

#Unit 6. System Physiology – Plant

The energy is essential for some aspects of movement from sieve elements to sink cells, which store or metabolize the sugar. This movement of photosynthate from sieve elements to sink cells is called

#Question id: 10910

#Unit 6. System Physiology – Plant

In early research on phloem translocation, both active and passive mechanisms were considered. All theories, both active and passive, assume an energy requirement in both sources and sinks. What will be the INCORRECT explanation of active and passive mechanism?

#Question id: 10911

#Unit 6. System Physiology – Plant

Researchers have investigated bidirectional transport by applying two different radiotracers to two source leaves, one above the other. Researcher wanted to see how bidirectional transport happens in sieve elements. Which one of the following is INCORRECT interpretation for bidirectional transport?

#Question id: 10912

#Unit 6. System Physiology – Plant

Velocities for transport in the phloem are measured by using a technique which detect water flow;