6. You design an experiment in which you investigate it different types of fertilize atteet tomato plant height. You prepare 4 plots of soil, all containing tomato plants. To the first
plot, you add a potassium fertilizer. To the second pict, you add a nitrogen fertilitet To
the third plot, you add a phosphate fertizer. You do not add any fertilizer to the fourth
plot You eventually gather data by measuring the height of each tomato plant,
B. What is the independent variable?
C. What is the dependent variable?
D. What type of data are you gathering qualitative or quantitative!

A where is question A?

B types of fertilizer

C plant height

D quantitative

the control is no fertilizer

& what is the null hypothesis?

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'