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TLS Online TPP Program

#Question id: 10496

Blue light–stimulated stomatal opening is abolished by green light in the 500 to 600 nm region of the spectrum,what are these alphabet showing in the graph?

#Unit 6. System Physiology – Plant

  1. A- blue light, B-green light, C- red light, D-blue light, E-green light

  2. A-green light, B-blue light, C-red light, D-red light, E-blue light

  3. A-red light, B-blue light, C-green light, D-blue light, E-green light

  4. A-blue light, B-green light, C-blue light, D-green light, E-blue light

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TLS Online TPP Program

#Question id: 29093

#Unit 10. Ecological Principles

Five Hypotheses Explain How Species Richness Affects Community Services
I-Elton’s hypothesis
II-rivet hypothesis
III-Redundancy hypothesis
IV-Keystone hypothesis
V-Idiosyncratic hypothesis
a) Species that play the same roles in a community can compensate for each other if some are lost under particular conditions
b) Community services change as the number of species increases or decreases
c) there is a linear correlation between species richness and community services
d) species is an organism that helps hold the system together
e)Some species play a small but critical role in keeping the plane
Correctly match the following hypothesis with their correct  prediction;
TLS Online TPP Program

#Question id: 29094

#Unit 8. Inheritance Biology

A cross was made between pure wild type flower with white color short pollen, F1 plant was allowed to test cross to produced numerous Offspring in following number;

What is approximate distance between Flower color gene and pollen length gene?
TLS Online TPP Program

#Question id: 29095

#Unit 8. Inheritance Biology

The following table summarizes the result of a cross between two strains of Neurospora having the alleles A and a, respectively. The table shows the different patterns of octad arrangement, and the number of ascus observed of each type;

A) According to the graph first two column are from meiosis with no crossover between locus A and_____I_______ 

B) The pattern for first these two columns represent______II_______

C) The distance between the locus A and the centromere is ___III___ map units
TLS Online TPP Program

#Question id: 29096

#Unit 8. Inheritance Biology

When a homozygous plant that produces purple fruit (PP) is crossed with a homozygous plant that produces white fruit (pp), all the heterozygous F1 (Pp) produce violet fruit If an F1 eggplant is used in a testcross, what proportion of the progeny from this cross will be white?
TLS Online TPP Program

#Question id: 29097

#Unit 8. Inheritance Biology

In the Palomino horses color is determined by three alleles at a single locus; C+/C+(light chestnut), C+/Ccr (Palomino), Ccr/Ccr (cremello). Chestnut is dominant over Palomino and cremello, and Palomino is dominant over cremello (C+/C+> C+/Ccr> Ccr/Ccr). What will be expected phenotypes and ratios of offspring produced by the C+C+/CcrCcr X C+Ccr/CcrCcr crosses?
TLS Online TPP Program

#Question id: 29098

#Unit 8. Inheritance Biology

A family in which club foot was inherited as an autosomal dominant trait. They discovered a mutation in the PITXI gene that caused club foot in this family. Through DNA testing, they determined that 11 people in the family carried the PITXI mutation, but only 8 of these people had club foot. Which of the following is the correct interpretation of the observation?