#Question id: 12670
#Unit 6. System Physiology – Plant
#Question id: 332
#Unit 1. Molecules and their Interaction Relevant to Biology
The electronegativity difference between N and F is greater than that between N and H yet the dipole moment of NH3 (1.5 D) is larger than that of NF3 (0.2 D). This is because_________
#Question id: 23789
#Unit 7. System Physiology – Animal
#Question id: 5661
#Unit 5. Developmental Biology
Following statements regarding to the embryogenesis in A. thaliana.
A. The first zygotic division is unequal, with the basal cell larger than the apical cell. The basal cell divides to give rise to the suspensor. The apical cell divides vertically to form a two-celled proembryo, which will give rise to the rest of the embryo.
B. The top most suspensor cell is recruited into the embryo, where it is known as the hypophysis, and contributes to the embryonic root meristem and root cap.
C. The next two divisions produce an eight-cell octant-stage embryo, which develops into a heart-stage embryo of around 32 cells
D. The embryo elongates and the cotyledons start to develop as wing-like structures at one end, while an embryonic root forms at the other. This stage is known as the globular stage.
Which of the following statements are correct?
#Question id: 32384
#Unit 2. Cellular Organization