A biochemist is studying the mechanism of DNA replication by stopping the reaction shortly after its initiation. Analysis of the products from the reaction in a gel reveals the presence of single-stranded and double-stranded DNA. The shorter fragments of DNA were found to be attached to a complementary sequence of 10 ribonucleotides. which of the following is the most likely explanation for the data?
A - Short fragments of mRNA bind at random to available single-stranded DNA sequences in the cell
B - tRNAs bind to available single-stranded DNA sequences in the cell
C - Short ribonucleotide sequences are the primers for DNA polymerases
D - Short sequences of RNA attached to DNA represent an artifact of the isolation procedure

I'm thinking it is C, not so sure tho

Which of the following substances is not involved in the chemical reaction that pro- duces smog? a. sunlight b. particulate matter c. automotive exhaust d. ozone

List charasteristics of athenosphere

Complete the sentences by matching the names of trees to the appropriate blanks. to do this, drag the names on the left into the appropriate blanks in the sentences on the right. match the words in the left column to the appropriate blanks in the sentences on the right. terms may be used more than once. make certain you have filled every blank with a term before clicking submit. 1. deciduous trees lose their leaves seasonally and include trees such as maple and elm. 2. conifer leaves are generally thin and needle-like, while seeds are contained in cones. conifers include cedar and pine. 3. evergreens are plants that maintain their leaves in all seasons and include trees such as cedar, elm, and pine. 4. hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as maple, , and cedar. elm returned you filled in 2 of 10 blanks incorrectly. mango trees are tropical broad leaf plants that maintain their leaves all year long. no credit lost. try again.