No, because histone modifications do not affect transcription
No, because the results demonstrate only a correlation between altered histone modifications and reduced transcription
Yes, because the observed changes in histone modifications are consistent with reduced transcription.
Yes, because histone modification is the only regulatory mechanism that could affect transcription
B. Amino acid cells
C. Enteric cells
D. Macrophages
Answer:
There will be 23 chromosomes in a sperm cell, 23 chromosomes in an egg cell, and 46 chromosomes in a white blood cell
Explanation:
Human cells are diploid in number i.e they exists in two basic sets (2N =46, where N is 23). So, cells of human body such as blood cells like white blood cells have two basic sets of chromosomes i.e 46 chromosomes, since they are produced by mitosis.
On the other hand, cells of humans involved in sexual reproduction such as the gametes (sperm and egg) have only one set of chromosomes since they are produced by meiosis - so they are haploid (N =23).
Answer:
Sperm=23
Egg cell=23
White blood cell=46
Explanation:
During cell division Meiosis produce haploid number of gametic chromosome 23.
The somatic cell contains 46 chromosome i.e diploid chromosome number. During cell division in meiosis gametes cells contains haploid number-23 chromosome which is half of the somatic cell chromosome.
During conjugation, haploid chromosome is donated by each parent to give a diploid organism with 46 chromosome number.
White blood cell contains 46 chromosome because it doesn't undergo cell division it is a somatic cell.
True or False?
B. By increasing the activation energy of the reaction
C. By decreasing the activation energy of the reaction
D. By increasing the energy of the products of the reaction
E. By decreasing the energy of the products of the reaction
Answer:
Enzymes help to carry out biochemical reactions C). By decreasing the activation energy of the reaction
Explanation:
Enzyme catalysis An enzyme catalyzes a biochemical reaction by binding a substrate at the active site. After the reaction has proceeded, the products are released and the enzyme can catalyze further reactions.