The dominant gene for a widow's peak is W; the recessive gene is w. Which two genotype combinations from the parents could result in this offspring combination? WW

WW

WW

WW

A) Ww and Ww

B) WW and WW

C) Ww and ww D) WW and Ww​

Which of the following changes to a pipe would increase the conductance by a factor of 12? 1.quadrupling the length and tripling the radius.2.reducing the length by a factor of and doubling the radius.3.tripling the length and reducing the radius by a factor of .4.reducing the length but a factor of and doubling the radius.

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.