Objective Questions

Biological organisation does not move from one structural level to another (Tru…

The phrase "the whole is greater than the sum of its parts" best describes: a. …

Which of the statements sums up "emergence"? a. the whole is greater than the s…

Which of the following levels of organization included all of the others? a. Co…

Unifying themes of Biology refers to: A. The biosphere interacting with the eco…

Which of these is NOT a theme that unifies biology? a. reductionism b. evolutio…

The core theme of biology is: a. natural selection b. adaptation c. competition…

Unifying all of biology is: A. Cellular basis of life B. Immergent properties C…

accounts for the unity and diversity of life: A. Metabolism B. Evolution C. Ada…

Evolution explains both the and of life: A. Unity and diversity B. Order and di…

Which of these explains the unity and diversity of life? a. Evolution b. Adapta…

The unity among all organisms can be attributed to: a. natural selection b. lif…

Which of the following is a key observation that must be explained in a unifyin…

Which of these statements is NOT True? a. Biological information is encoded in …

is observation-based discovery and testing of explanations through hypothetico-…

In scientific enquiry, which of the following is tested? a. a theory b. a resul…

To be of value to science, hypothesis must be: a. reproducible b. proven correc…

Hypothesis is a necessity in scientific methods: a. Partially necessary b. Fals…

Hypothesis is a form of prediction in biological inquiry: a. None of the above …

Variables kept constant during an experiment are: A. Independent variables B. D…

The variable manipulated by the researcher is the: A. Dependent variable B. Ind…

Macromolecules are defined as: A. Molecules made of thousands of covalently con…

To what category of macromolecules do most enzymes belong? a. Carbohydrates b. …

The polymer "carbohydrate" consists of monomers called: a. Glucose b. Maltose c…

is the general formula for carbohydrates: a. (C2H20)n b. (CH20)n c. (CnH20)n d.…

The most important monosaccharide for energy storage is: a. Galactose b. Glucos…

The bond in disaccharides is referred to as: a. Peptide b. Esterific c. Glycosi…

Which of the following groups are all polysaccharides? a. Glucose, fructose, su…

A disaccharide contains units of monosaccharides: a. 2 b. 5 c. more than 2 d. M…

is the most abundant organic substance in nature: a. glycogen b. cellulose c. p…

Lipids are insoluble in water because lipid molecules are: a. Hydrophilic b. Ne…

Fats can store more energy than carbohydrates (True/False)

The primary structure of a protein refers to: A. Alpha helix b. 3D folding c. S…

The unique three-dimensional structure of a polypeptide is referred to as: a. P…

The R-group of an amino acid determines its: A. Backbone b. Solubility in water…

Which is found in amino acids? a. Alpha carbon b. -NH2 c. -COOH d. A,B,C

The two functional groups in carboxylic acids (amino acids) are: a. NH2 & -COOH…

The bond that joins amino acids together to form protein is: a. Protein bond b.…

Animals obtain their amino acids from: a. Other animals b. Plants c. A,B d. Syn…

Which of the following is the building block of nucleic acids? a. Nucleotides b…

Nucleic acids are long chain polymers composed of units called: a. nucleosides …

Which biomolecule serves as the genetic blueprint? A. Protein B. Lipid C. Nucle…

Select the ODD one out: A. Guanine B. Adenine C. Cytosine D. Uracil

What constitutes the repeating unit of nucleic acids? a. phosphate molecules b.…

Nucleoside consists of: a. phosphates and bases b. bases and sugar c. phosphate…

Which of the following is not a component of nucleotide? a. nitrogenous base b.…

The monomer in a single DNA strand in all living things is: a. RNA b. nucleotid…

Which of the following is correct as the four nitrogenous bases found in RNA? a…

In DNA, the purines are ; and the pyrimidines are : a. cytosine and thymine; ad…

Purines are made up of: a. cytosine and guanine b. adenine and guanine c. adeni…

Which of the following is correct? a. Adenine forms two hydrogen bonds with gua…

In DNA hydrogen bonds are formed between: a. The phosphate groups b. The 3'-OH …

Nucleotides are linked to one another by: a. Disulphide bonds b. Covalent bonds…

Which of the following DNA sequences contains FOUR pyrimidine bases? a. GCATGGA…

The relative size of the length between the two strands in alpha helix structur…

A short length of DNA molecule has 80 thymine and 80 guanine bases. The total n…

How long is an average menstrual cycle? a. 1 week b. 2 weeks c. 28 days d. 45 d…

DNA and RNA are similar in that both: a. are in the form of a double-helix b. c…

This system is involved in protein synthesis, lipid metabolism, and __________ …

Which of the following is best described as the substance of genes: a. Nitrogen…

Genes are composed of: a. carbohydrates b. proteins c. DNA d. chromosomes

DNA is present in: a. nucleus, chloroplast, Golgi apparatus b. nucleus, mitocho…

One of the functions of the DNA is to: a. secrete vacuoles b. make copies of it…

What form of macromolecule is DNA topoisomerase? a. nucleic acid b. nucleotide …

Barbara McClintock discovered: a. the Golgi apparatus b. the a-helix structure …

Which statement describes the semi-conservative replication of DNA? A. Parental…

DNA replication: a. takes place in the nucleus of the cell b. is constantly hap…

DNA replication involves the breaking of bonds between: a. bases b. sugars and …

The enzyme that breaks hydrogens bond between double strands DNA during replica…

The enzyme that seals DNA fragments is: A. DNA polymerase B. RNA primase C. DNA…

What is the action of the enzyme DNA ligase? a. DNA is broken up at a specific …

Yeast and Hydra reproduce asexually by: a. binary fission b. budding c. fragmen…

What is the base sequence of the DNA strand that would be complementary to the …

A mutation is: a. a physical deformity b. a defective egg or sperm cell c. the …

Who formulated the one gene-one enzyme hypothesis? a. Beadle and Tatum b. Watso…

What does the enzyme RNA polymerase synthesize? A. A polypeptide from an mRNA t…

Which statement correctly describes mRNA? a. mRNA binds amino acids for incorpo…

If the sequence in an RNA molecule is - - GUCAUC - - - then the corresponding D…

Which of these is not involved directly in translation? a. mRNA b. tRNA c. rRNA…

The number of nucleotide bases read together on the mRNA to designate each amin…

The signal to start translation is the initiator codon, usually AUG, the codon …

Sexual reproduction leads to genetic: a. Variation b. Stability c. Instability …

If the nucleotide sequence of an anticodon was AUC, then the DNA triplet would …

The plantain reproduces asexually by: a. Suckers b. Buds c. Fragments d. Spores

How many amino acids are coded for by this DNA sequence: 5' CGATATGCTGGC 3'? a.…

Double-membrane organelles include the Nucleus, Mitochondrion, and __________.

The insulin molecule is composed of two polypeptide chains, one consisting of 2…

The function of tRNA is to: a. form a site for protein synthesis b. transcribe …

A polypeptide is assembled on a: a. DNA Molecule b. Nucleolus c. ribosomal RNA …

During protein synthesis, peptide bonds are formed at the: a. nucleus b. nucleo…

The RNA type that carries information from DNA to the site of protein synthesis…

Which type of molecule is the end product of translation? a. Amino acid b. DNA …

Sexual reproduction is hindered by the presence of a large number of chromosome…

Parthenogenesis is a form of: a. Response b. Stimulus c. Sexual reproduction d.…

Which statements are true for both sexual and asexual reproduction? I. Gametoge…

Both asexual budding in Hydra and development of an adult human from a zygote i…

The offspring from asexually reproduced organisms are: a. A different species b…

The mechanism that provides for reproduction in single-celled organisms and gro…

Which of these does not produce genetic variation? a. sexual reproduction b. bi…

What structure connects the uterus with the outside body? a. Uterine tube b. Va…