In Drosophila melanogaster, vestigial wings are determined by a recessive allele of a gene that is linked to a gene with a recessive allele that determines black body color. T. H. Morgan crossed black-bodied, normal-winged females and gray-bodied, vestigial-winged males. The F1 were all gray bodied, normal winged. The F1 females were crossed to homozygous recessive males to produce testcross progeny. Morgan calculated the map distance to be 17 map units. Which of the following information is correct about the testcross progeny?

TLS Online TPP Program

#Question id: 10137

#Unit 6. System Physiology – Plant

The Calvin–Benson cycle pathway decreases the oxidation state of carbon from the highest value, found in CO2 (+4), to levels found in sugars;  +2 in keto groups — CO—; 0 in secondary alcohols —CHOH,  In view of its notable capacity for lowering the carbon oxidation state, the Calvin–Benson cycle is also aptly named the

TLS Online TPP Program

#Question id: 26844

#Unit 10. Ecological Principles

Researcher study the diversity of 2 communities, following is relative abundance of each species at different community? ( ln .5 = -0.69  , ln .25= -1.38  , ln .12= -2.12)

 What is value of Shannon index of community A and community B respectively?

TLS Online TPP Program

#Question id: 3358

#Unit 11. Evolution and Behavior

Populations with low effective sizes are susceptible to all of the following except

TLS Online TPP Program

#Question id: 10511

#Unit 6. System Physiology – Plant

Which type of pumps inhibits digitoxin in the membranes of heart cells, leading to increased myocardial contraction?

TLS Online TPP Program

#Question id: 11257

#Unit 10. Ecological Principles

Close examination of the yucca-yucca moth mutualism has shown that what appear to be coevolved traits may have been __________ that were critical to the establishment of the mutualism in the first place.