Plasma is the fourth state of matter. Plasma is an ionized gas, a gas into which sufficient energy is provided to free electrons from atoms or molecules and to allow both species, ions and electrons to coexist.
30-50%
30% in the winter
50% in the summer
Answer:
a. the RNA polymerase undergoes abortive initiation prior to promoter clearance
Explanation:
In eukaryotes the 3' end of the mRNA is polyadenylated to protect the mRNA from degradation.
In eukaryotes, a modified guanine cap is added to the 5' end of the mRNAd to protects the transcript from being broken down.
Most bacterial RNA transcripts do not undergo splicing.
The nucleosome is the basic unit of chromatin repeat in eukaryotes.
Answer:
False.
Explanation:
The plants growth, maintenance and metabolism are controlled by the plant hormones and plant secondary metabolites. Five important plant hormones are auxin, gibberelin, cytokinin, ethylene and abscisic acid.
The plant hormones regulates the developmental process like root-shoot initiation, germination, flowering and fruits development. Auxins regulates the root development, gibberellins helps in seed dormancy, ethylene helps in ripening of fruits, cytokinin helps in shoot formation and abscisic acid causes leaf senescence and ageing.
Thus, the given statement is false.
