Human have 23 chromosomes

Which of the following is not true of the structure of DNA?

If the embryo shown above had four chromosomes in each of its cells, how many different combinations of chromosomes could be found in its gametes?

A gene is

In the DNA molecule, the nitrogen bases are always found in pairs. The base A pairs with...

A mutation causes a bacterial cell to begin producing a new protein. The mutation probably...

The DNA that directs all cell activities is contained in the cells _____________

Another name for a body cell is a

One of the first uses of modern biotechnology was

Which of the following is not a feature of DNA?

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