Eukaryotic cells have a nucleus and prokaryotic cells do not.
Answer:
Systolic blood pressure
Explanation:
The contraction of the heart that allows blood to pump is the systole and the relaxation of heart after contraction is the diastole. These are the two phases of the cardiac cycle. The systolic blood pressure is more important than diastolic blood pressure as it provides the ideas of heart attack or stroke.
The increase in the systolic pressure and low or normal diastolic pressure is called ISH (Isolated Systolic Hypertension). This is an indication of high risk of heart attach or stoke. The diastolic pressure is sometimes important in detecting risk of heart attack in individual below the age of 40 years. The younger individuals are less prone to heart attack risks.
Answer:
Below
Explanation:
mRNA is a complimentary copy of a DNA segment (gene) and consequently can be used to deduce the gene sequence. For converting a sequence from mRNA to the original DNA code, apply the rules of complementary base pairing: Cytosine (C) is replaced with Guanine (G) – and vice versa. Uracil (U) is replaced by Adenine (A).
The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain. The anticodon is the complementary three nucleotide sequence in the appropriate tRNA.
If a repressor protein attaches to the operator, RNA polymerase cannot proceed to transcribe key enzymes needed by the organism. This can be seen in the trp operon in E .coli bacteria.