After Mutagenesis and Screening,you Have Found a Mutant That Is

question 20

Multiple Choice

After mutagenesis and screening,you have found a mutant that is able to grow in soil with high salt content.Chemical analysis showed that this plant has a decreased amount of Na⁺ relative to normal plants.What kind of mutation do you predict this plant contains?

• A)mutation in the plasma membrane sodium channel
• B)mutation in the metallothioneins
• C)mutation in the tonoplast sodium channel
• D)mutation in the tonoplast antiporter