Group 1a element sodium combines with group 7a element chlorine to form sodium chloride or table salt. based on this information, this expression is true about the electronegativity values of these two elements.

a) na > ci
b) na < ci
c) na = ci
d) we cannot make a prediction with data provided.

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

option a and d is the correct answer

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in which structure in the nucleus are ribosomes made?

b) nucleolus!

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many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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