When the black coloured guinea pig (BB) is crossed with white coloured guinea pig (bb):
Parents: BB x bb
Gametes: B, B x b, b
F
1
generation: All Bb (black coloured guinea pig)
Selfing: Bb x Bb
Gametes: b, b x B, b
F
2
generation: BB, Bb, Bb and bb
The offsprings produced in the F
2
generation are:
BB- black coloured guinea pig
2 Bb- black coloured guinea pig
bb- white coloured guinea pig
The genotypic ratio is 1:2:1. (1 BB, 2Bb and 1 bb)
The phenotypic ratio is 3:1 (3 black and 1 white)
Answer:
True
Explanation:
The members all have seven different protein segments that cross the membrane, and they transmit signals inside the cell through a type of protein called a G protein. When its ligand is not present, a G protein-coupled receptor waits at the plasma membrane in an inactive state.
A change in position over time is called a shift.
Answer:
As mitosis ends, each developing daughter cell receives one set of chromosomes. The nuclear membranes return as the cell divides through the process of cytokinesis. In this way, mitosis ensures genetic continuity across generations of cells.