Which term would be applied to a regulatory condition that occurs when protein is associated with a particular section of dna and greatly reduces transcription?
a) induction
b) negative control
c) stimulation
d) positive control
e) activation

Negative control

Explanation:

When a protein binds to specific sites at DNA and serves to reduce the rate of gene expression, the protein is said to exert negative control. These proteins may be transcription factors that down-regulate the gene expression. One of the examples is the lac repressor encoded by the lac I gene of the lac operon. Binding of repressor protein to the operator sequence prevents RNA polymerase to transcribe the genes. This is called negative control of lac operon.

chromosomes carry the genetic information for organisms. also, chromatin is the thread like dna which is located in the nucleus of an organism.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg