Objective Questions

DNA differs from RNA in all of the following EXCEPT:

What is the role of helicase in DNA replication?

Which statement correctly defines a karyotype?

Which of the following best describes incomplete dominance?

Which of the following tools is most useful in tracking inheritance patterns ac…

What is the likely genotypic ratio in a monohybrid cross of two heterozygotes (…

Which of these represents an example of a sex-influenced trait?

In mitochondrial inheritance, genes are passed:

Which of the following is a characteristic of autosomal dominant inheritance?

Trisomy 21 is caused by:

Which method is commonly used to amplify a segment of DNA in vitro?

What happens during nondisjunction?

Immerse a living cell in a hypotonic solution and water will tend to

________ is the capacity of cells to extract energy from sources in the environ…

DNA _______

________ are to proteins as _______ are to nucleic acids

After mitosis the chromosome number of a daughter cell is _____the parent’s cell

The cell was first described by

The Unifying concept in biology was proposed by a

The term protoplasm given to the jelly-like content of cells was first used by

_________ showed that all cells arise from pre-existing cells by cell division

________ discovered that capillaries link arteries to veins

Biology was made popular by

The study of fossils is called

_______ was a builder of microscopes

A correlation exists between the structure and function of a cell

Biological organisation does not move from one structural level to another

Information in viruses is encoded in the DNA

Most common and biologically important elements are H, O, N & C.

Red Blood cells can be seen with the naked eye

Mitosis provides mechanism for quick reproduction in single celled organisms an…

Differentiation in cells reduces efficiency

Plastids are colourless if not exposed to light

The hard outer covering of seeds and nuts is made of collenchyma cells

Main mineral in bone is Ca2 (PO4) 2.

Blood is not a tissue

Platelets do not initiate the process of blood clothing

The kidney is a homeostatic device

White Blood cells take up bacteria by phagocytosis.

The Secretion of enzymes from the pancreas is a form of exocytosis.

The genetic factors responsible for creating the measurable properties of an or…

Mendel's first law of inheritance describes

When a homozygote for one allele is crossed with a homozygote for another allel…

How many of 160 F2 offspring from a monohybrid cross of a true breeding tall an…

What is the probability that the zygotes of a dizygotic twin will be males?

Haemophilia is caused by a sex-linked, recessive allele. Two parents have a hae…

A human cell containing 22 autosomes and a Y chromosome is

The syndrome in humans in which an individual's somatic cells contain the three…

The sex-determination system in which males are XY and females XX is found in a…

Joseph expressed hypertrichosis (hairy pinna), a trait carried by a gene on his…

The formation of chiasma(ta) is an important feature of meiotic divisions becau…

The amount of DNA in a mammalian cell in early prophase1 is X. What is the amou…

How many different combinations of maternal and paternal chromosomes can be pac…

For double-stranded DNA which of the following base ratios will always equal to…

A nucleoside comprises of

In DNA hydrogen bonds are formed between

The number of nucleotides in a complete turn of the DNA double helix is

In the transformation experiment to demonstrate that DNA is the hereditary mate…

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

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

A polypeptide is assembled on a

Which organelle is associated with these functions: autophagy, autolysis and en…

Who among the following first described tissues?

Which is not true about the subject biology?

Which is next in line? Molecules organelles cells tissues organs

Cells were discovered by __________ in 1665

________ is a segment of the DNA that codes for a specific trait

___________ is the maintenance of a relatively stable internal conditions

Biology as a subject was made popular by _________

_________ was the first to view living organism using a microscope

A cell is a unit of the _____bounded by a plasma membrane and processing a ___

Instead of _________ the cell of bacteria contains __________

All are eukaryotes except

Ribosome of prokaryotes is _________ while that of eukaryotes is _________

The plasma membrane is generally a double layer of __________ & _________

The proteins attached to the surface of cell membrane are called ___________

Ribosomes are synthesized in the ________

Human mitochondrion is inherited __________

Rough ER is rough because it has __________ attached to its surface

Regulation of calcium in muscle cells is a function of the _________

_________ & __________ make up ribosomes

Stacks of flattened sacs that modify, sort & package molecules are the _________

Autophagy & apoptosis are functions of the ________

__________ is the most abundant organic substance in nature

The two functional groups in carboxylic acids are __________ & ___________

Most enzymes are __________

Nucleic acids are long chain polymers composed of units called __________

Lipids store _________ amount of energy than carbohydrates

Conversion of nitrate is called

__________ can convert ammonia to nitrite

Processes that release carbon into the atmosphere include all but one

+/+ interaction that is not obligatory is

Interaction between shark and remora fish is

_________ coined the term ecology

Running water body refers to __________ ecosystem

___________ is the combination of the spatial habitat & functional relationship…

A/an _________ is the largest biogeographical unit of the biosphere

__________ refers to movement of energy from one trophic level to another

A __________ community is developed after ecological succession

Which is not an event of the Precambrian era?