GENERAL HISTOLOGY

CONNECTIVE TISSUE GLAND

ENDOCRINE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Hormone that enters the nucleus and changes the pattern of gene expression?
A
Nonsteroid hormone
B
Secondary messenger
C
Steroid hormone
D
Hypothalamus
Explanation: 

Detailed explanation-1: -Steroid hormones regulate gene expression posttranscriptionally by altering the stabilities of messenger RNAs. Biol Reprod.

Detailed explanation-2: -Steroids pass into a cell’s nucleus, bind to specific receptors and genes and trigger the cell to make proteins. Amino acid derivatives, such as epinephrine, are water-soluble molecules derived from amino acids (the building blocks of protein).

Detailed explanation-3: -After binding to the ligand (steroid hormone), steroid receptors often form dimers. In the nucleus, the complex acts as a transcription factor, augmenting or suppressing transcription particular genes by its action on DNA.

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