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vodka [1.7K]
3 years ago
14

Help me in science only no 12

Biology
2 answers:
Assoli18 [71]3 years ago
8 0

No, not all genes are constantly expressed. Genes are turned on and off depending on the specialty of the cells.

liq [111]3 years ago
5 0

Certain key genes are made at all times under all circumstances. – E.g. Ribosomal proteins, tRNAs, RNA polymerase, glycolysis enzymes – These are called constitutive genes. Other genes are made only at certain times or in certain conditions so YES


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