Each homologous pair of chromosomes forms a "tetrad". The name tetrad is given because each pair contains
chromatids.

a) 2
b) 4
c) 6
d) 8

Which of the following statements is true of enzymes? a)they dont provide an active site for substrates to bind in a reaction b)they act on a specific type of substrate in a reaction c)they unusable after a reaction d)they change shape after a reaction

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Aboy with an extra x chromosome probably has which of the following syndromes?