Urn A contains 6 red and 4 black balls and urn B contains 4 red and 6 black balls, one ball is drawn at random from urn A and placed in urn B. Then one ball drawn at random from urn B and placed in urn A. If one ball is now drawn from urn A, the probability that it is found to be red is

TLS Online TPP Program

#Question id: 1290

#Section 3: Genetics, Cellular and Molecular Biology

Hydroxyproline is important in the formation of staple collagen polymers within cells. The formation of hydroxyproline requires:

TLS Online TPP Program

#Question id: 14582

#Section 2: General Biology

Peptone

TLS Online TPP Program

#Question id: 134

#Section 2: General Biology

Ultraviolet (UV) light can be used to estimate protein solution concentrations because

TLS Online TPP Program

#Question id: 3295

#Section 3: Genetics, Cellular and Molecular Biology

Males of different species of the fruit fly Drosophila that live in the same parts of the Hawaiian Islands have different elaborate courtship rituals. These rituals involve fighting other males and making stylized movements that attract females. What type of reproductive isolation does this represent?

TLS Online TPP Program

#Question id: 300

#Section 2: General Biology

Hydrogen bonding occurs in molecules when ___________________.