Answer:
Because each duplicated chromosome consists of two identical sister chromatids joined at a point called the centromere, these structures now appear as X-shaped bodies when viewed under a microscope. Several DNA binding proteins catalyze the condensation process, including cohesin and condensin.
Explanation:
The question is incomplete as it does not have the options-
A) Gamma-aminobutyric acid (GABA)
B) Acetylcholine
C) Dopamine
D) Serotonin
Answer:
The correct answer will be option- Dopamine
Explanation:
Parkinson's disease is one of the movement disorders which gets worse with time. The disease is caused due to the degeneration of the neurons in the brain which are responsible for the body movement.
Although many brain areas are affected the most common result is due to the loss of neurons in the substantia nigra in which the neurons produce a neurotransmitter called dopamine which is responsible for the body movements.
Thus, Dopamine is the correct answer.
True ..In animals, the female mitotic sequence produces only one ovum; the other three haploid cells become "polar bodies".
Answer:
Occurs in chloroplast- Photosynthesis
Carbon dioxide and water are converted to sugar- photosynthesis
Occurs in plant cells- respiration and photosynthesis
Occurs in the mitochondria
- respiration
Occurs in the cells to give energy needed for life
processes-respiration and photosynthesis