Objective Questions

What is the term for the stage of embryonic development characterized by the fo…

During sexual intercourse approximately how many sperm cells enter the vagina?

What is the term for the process by which the embryo undergoes rapid cell divis…

Which factor of ecosystem includes plants, animals and microorganisms?

The study of ecology is divided into two broad categories namely:

Which of these describes Ecology?

Natural selection acts at which of the following levels?

Which of these connotes a hybrid?

Which of the following groups embraced the rest?

What term is used to describe the study of an individual organism by an ecologi…

What is the name given to a community plus the non-living factors it interacts …

Which two epochs form the Carboniferous period?

A related group of genera comprises the:

According to Darwin, evolution is:

Darwin originally defined evolution as:

In taxonomy, each level of classification is referred to as the:

"Survival of the fittest" means:

Which of the following is a purine base?

mRNA, rRNA and DNA can be found inside the chloroplast.

What is a codon?

rRNA is synthesized in the nucleolus.

Chromosomes exist in homologous pairs in ______ organisms.

What is negative feedback in homeostasis?

The pairing process of homologous chromosomes is called:

Nucleic acids are polymers consisting of long chains of monomers called:

When both alleles are different, the individual is said to be:

Storage of polysaccharide in animals:

Fatty acids with no double bonds are said to be:

Rough endoplasmic reticulum attaches carbohydrates especially to secreted prote…

Okazaki fragments are:

Light reaction occurs in the mitochondrial matrix.

What is the dependent variable in an experiment?

During DNA replication, both strands are synthesized continuously.

What is the term for the mechanism in which the body counteracts a change to re…

B type lamins are found next to the nucleoplasm.

Interphase is a stage in mitosis.

An animal has 36 chromosomes in each of its body cells. How many of these chrom…

_____ lamins are inside, next to nucleoplasm while ........... lamins are near …

Identify the odd one:

_____ chromatin is transcriptionally active while ....... chromatin is transcri…

What is the role of tRNA in protein synthesis?

If one parent is heterozygous and the other is homozygous recessive, what is th…

A situation in which the phenotypes produced by two alleles are clearly express…

Tonoplast can be found in:

Which of the following is testable in scientific enquiry?

A symport protein transports:

The occurrence of differences among the individuals of the same species is know…

Which of these is a disaccharide?

Individual's metaphase chromosomes organized by length, shape, centromere locat…

Peroxisomes are organelles that do not contain oxidative enzymes, such as:

What is the independent variable in an experiment?

Select the odd one out:

Four haploid cells each genetically distinct from the parent cell that gave ris…

Nuclear lamina consists intermediate filaments ......... thick made up of polym…

Choose the odd one out:

Which structure of protein is associated with β-pleated sheet shape?

Translation is:

Which organelle is responsible for modifying, sorting, and packaging proteins f…

What is the chromosomal basis of sex determination in humans?

________ is a state in which the internal environment is being maintained withi…

The cell theory was proposed in

Colchicine is a chemical that stops chromatids from separating during mitosis. …

When is the DNA content of a cell doubled?

Reverse transcriptase is the enzyme which copies

What is the action of the enzyme DNA ligase?

Which statement correctly describes mRNA?

The most conspicuous structure in a typical cell is

Cell appear generally in how many dimensions in space

Where is thrombokinase, important in clotting, synthesized?

__________ accounts for both the diversity & unity of life

_________ & _________ concluded that all plants & all animals were made of cell…

Who first observed the division of cells?

The first cells are the __________

DNA is spread out as _________ in non-diving cells & condensed wrapped around p…

Cytoskeleton is composed of __________ made of actin & _________ made of tubulin

The folded inner membrane of the mitochondria are called ____________

__________ is the membrane covering the vacuole

DNA can be found in all but one

The chloroplasts have inner membrane modified into sacs called __________ & gel…

A major element needed for chlorophyll formation is _________

More than __________ units of monosaccharides join together to form the polysac…

Fission involves the __________ and separation of a parent into two equal-sized…

What is the general term for structural or functional differences present at bi…

Which term refers to the process by which environmental or genetic factors disr…

During which prenatal period is the developing embryo most vulnerable to terato…

What are the two broad categories of causes for congenital anomalies?

Which of the following is an example of a congenital anomaly caused by a geneti…

Turner syndrome is caused by:

Cystic fibrosis is primarily caused by:

Which of the following substances, if consumed during pregnancy, is a known ter…

Which of the following medications is explicitly named as a known teratogen if …

Which maternal infection is listed as a teratogen that can disrupt fetal develo…

What type of environmental exposure can disrupt fetal development due to its io…

Which maternal health condition increases the risk of congenital heart defects …

Maternal obesity has been linked to an increased risk of which defects in the n…

Poor maternal nutrition, particularly a lack of which nutrient, is a major prev…

What is the status of causes for many congenital anomalies?

Congenital anomalies can affect which of the following?

Which of the following is listed as an example of a structural congenital anoma…

What does the abbreviation 'WHO' stand for in the context of the image source?