An individual without gonads will leave no genes to the next generation. Gonads and genitalia are called primary sexual traits.

Secondary sexual traits, which differ between the sexes but do not play a direct role in reproduction.

TLS Online TPP Program

#Id: 7835

#XL - T Zoology

Aldoses with at least three carbons and ketoses with at least four carbons contain chiral centers

TLS Online TPP Program

#Id: 8398

#XL - Q Biochemistry

In the presence of ATP and Ca+2 , the myosin heads extending from the thick

filaments walk toward the (+) ends of the thin filaments.

TLS Online TPP Program

#Id: 8436

#XL - T Zoology

Grime’s triangle

TLS Online TPP Program

#Id: 4308

#XL - T Zoology

Haldane’s rule: hybrid sterility or hybrid inviability is often limited to the heterogametic sex. (The heterogametic sex is the one with two different sex chromosomes, while the homogametic sex has two sex chromosomes of the same type).

TLS Online TPP Program

#Id: 10730

#XL - R Botany

Phyllode resembles cladodes and phylloclade but refers to a flattened petiole that resembles a leaf blade (rather than a narrow stalk). 

Australian acacias (Acacia) have phyllodes