Poly U, an artificial mRNA, was added to a test tube with all other components for protein synthesis (“Complete system”). Other test tubes differed from the complete system as indicated in the table. Samples were tested for radioactive phenylalanine incorporation. with the results in the table below. Explain the results […]

1) In stenchblossoms, 2 genes control flower color.  The all-recessive phenotype (aabb) is pale green.  The product of the dominant “A” allele converts the flower to pink.  The product of the dominant “B” allele converts the pink pigment to yellow.  A pale green flower named Max mates with a pink […]

Is there any one who can help me to answer following questions.  1. Explain Mendel’s Law of Segregation. 2. Make a Punnett square of the following cross and answer the questionsbelow. A heterozygous orange flowered plant is crossed with ahomozygous white flowered plant. Orange flowers are dominant.       […]

1. What is a mutant screen? What is it used for?2. How does a restriction enzyme “know” where to cut?3. How does the length of the recognition site determine the length of the DNA fragments produced by the restriction enzyme (frequency of cutting)?4. How do restriction enzymes and ligase allow […]