Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
C The _____________ are small one-ring structures of carbon and nitrogen and are represented by thymine and cytosine.
`purines `pyrimidines `nucleotides `guanines
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
B The ______________ are larger double-ring structures that are represented by adenine and guanine.
`purines `pyrimidines `nucleotides `thymines
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
A The amount of ______________ always equals the amount of thymine in an organism.
`adenine `thymine `cytosine `guanine
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
A The amount of ______________ always equals the amount of guanine in an organism.
`adenine `thymine `cytosine `guanine
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
C The term that describes the fact that there are always equal amounts of these base pairs is _____________.
`mitosis `meiosis `base pairing `replication
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
C One side of the double helix has the following sequence of bases: GTCAA. What would be the corresponding sequence on the other side of the double helix?
`TTGAC `CAGTA `CATTT `CAGTT
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
D One side of the double helix has the following sequence of bases: GTCAT. What would be the corresponding sequence on the other side of the double helix?
`TTGAC `CAGTA `CATTT `CAGTT
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
B How many hydrogen bonds form between cytosine and guanine?
`1 `2 `3 `4
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
C How many hydrogen bonds form between adenine and thymine?
`1 `2 `3 `4
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
B The process by which DNA makes copies of itself during the S stage of interphase is called ___________.
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
B One of the major differences between DNA and RNA is the five carbon sugar called ________________.
`fructose `glucose `ribose `romulose
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
C The other difference is found in the nitrogenous bases where thymine is replaced by ______________.
`adenine `guanine `cytosine `uracil
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
D RNA is a very important tool in protein synthesis and is seen in different forms. Which type of RNA is involved in the transcription of the genetic code and carrying it to the cytoplasm for translation?
`mRNA `rRNA `tRNA `RNA
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
A Which form of RNA is responsible for hooking up with specific amino acids and delivering them to the sites of protein synthesis?
`mRNA `rRNA `tRNA `RNA
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
C ___________________ is the process by which segments of DNA are copied, thus forming a strand of mRNA.
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
A Translation involves uncoding the mRNA to form chains of amino acids called __________________.
`anitcodons `mutations `nucleotides `proteins
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
D The place of protein synthesis within a cell is the __________________.
`nucleus `ribosome `smooth ER `Golgi body
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
B Tiny bits of ______________ are responsible for bringing amino acids to the protein forming sites.
`mRNA `rRNA `tRNA `RNA
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
C The tRNA has an _______________ codon which is the complementary base pair to the codon found on the mRNA and also specifies which amino acid to bring to the newly forming protein.
`group `anticodon `codon `enzyme
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
B The ________________ indicates the initiation stage of protein synthesis.
`start codon `anticodon `stop codon `codon
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
A _________________ is the stage where the protein is actually formed (or is growing).
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
B The _________________ indicates the termination of protein synthesis
`start codon `anticodon `stop codon `codon
Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
C Sometimes things may go wrong in protein synthesis. A cell may receive too much ultraviolet light causing an extra base to be inserted in a protein. This type of occurrence is called a ____________.
`mistake `replication `termination `mutation Multiple choice - please select the best answer that describes the following phrase or fills in the blank.
