See the Punnett square above. What are the chances these parents will have offspring with a homo-zygous recessive trait? 2 in 4 (50%)
1 in 4 (25%)
O in 4 (0%)
4 in 4 (100%)​

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

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection

How does an angiosperm prevent self pollination