Birds have bipedal locomotion as it

Options

A. Releases from limbs for other purpose
B. Increases speed
C. Reduces body weight
D. Provides better support to the body.

Answer

A

Explanation

Globin Gene Family in Humans. In early embryo, haemoglobin consists of `zeta_(2)epsi_(2),zeta_(2)gamma_(2)` and `alpha_(2)epsi_(2)`. In foetal stage baemoglobin is `alpha_(2)gamma_(2)`. In adult `97% ` of haemoglobin is `alpha_(2) beta_(2), 2% alpha_(2)del_(2)` and `1% alpha_(2)beta_(2)` (foetal from), `epsi,del,beta` and `gamma` genes are located chromosome 11 while `zeta` and `alpha` genes occur on chromosome `16`.