Answer:
In humans, 22 pairs of chromosomes are autosomes, whereas the 23rd pair is an allosome (sex chromosomes).
Step-by-step explanation:
Autosomal chromosomes are also called as homologous chromosomes because they are identical in both male and female cells. However, allosomes are sex chromosome and they vary in shape, size, and genetic information in both genders. In fact, they define the gender in humans and other organisms that reproduce through sexual means.
For the given statement it is incorrect to say that all humans chromosomes are autosomes. In humans, there are 23 pairs (46) of chromosomes among which 22 are autosomes and 1 is allosome.