There’s no doubt that fish is a great source of protein in one’s diet. But the debate about whether fish farming or commercial fishing is worse for the environment continues and, as you might suspect, there isn’t a straightforward answer.

We’ve gotten maybe too good at fishing, and as a result we’ve completely transformed the oceans. So what can we do to make fishing more sustainable and still enjoy our fish and chips?

Pupil outcome: I can use CAD/CAM safely to manufacture designs. Key learning points: - 2-dimensional computer-aided design can be used to design accurately for manufacture. - Laser cutting is a form of computer-aided manufacture. - Laser...

Pupil outcome: I can identify different 2D nets which will create the same 3D shape. Key learning points: - A net is a 2D shape that can be folded and joined to create a 3D shape. - There can be more than one way to create a net for a...

Pupil outcome: I can compose 3D shapes from 2D nets and identify the 2D net which will create a 3D shape. Key learning points: - A net is a 2D shape that can be folded and joined to create a 3D shape. - Not all arrangements of shapes...

Pupil outcome: I can efficiently calculate the surface area of cubes and cuboids. Key learning points: - The surface area of a solid is the sum of the area of all the faces. - The net of a cuboid can help find the surface area. - The...

Pupil outcome: I can relate a solid to its net, draw a solid from its net and draw a net from its solid. Key learning points: - A net is composed of polygons. - Folding a net along certain edges and joining others, produces a solid. - By...

Pupil outcome: I can efficiently calculate the surface area of other prisms. Key learning points: - The surface area of a prism is the sum of the area of all the faces. - The net of a prism can help find the surface area of a prism but...

Pupil outcome: I can appreciate the concept of surface area and find the surface area of cuboids. Key learning points: - The surface area of a 3D shape is the sum of the area of all the faces. - The net of a cuboid can help find the...

In this video you will learn to create restriction maps based on the banding pattern obtained on agarose gel image.

In this video, you will learn to make cladograms from the given data. Also, CSIR UGC NET problem is discussed to clear the concept. A cladogram is a diagram used to represent a hypothetical relationship between groups of animals, called...

This video explains how the technique of flow cytometry is used to detect for the presence of apoptotic cells in a given cell population. The technique used is Annexin V-Propidium iodide staining. Annexin V is a calcium-dependent...

The Major Histocompatibility Complex (MHC) is a tightly linked gene cluster encoding cell surface molecules essential for antigen presentation and tissue graft rejection, known as histocompatibility antigens. In humans (HLA complex on...

Cysteine Lactose Electrolyte Deficient Agar is a differential media. It is preferred over MacConkey’s agar to differentiate between lactose fermenters and lactose non-fermenters. Organisms that can break lactose produce acidic end...

The ABC model of flower development explains how three classes of homeotic genes—A, B, and C—interact to determine the identity of floral organs in four concentric whorls: sepals, petals, stamens, and carpels. Class A alone specifies...

A complementation test (or cis-trans test) is used to determine whether two recessive mutations causing the same phenotype occur in the same gene or in different genes. In the trans configuration, if the mutations are on different genes,...

Pyrosequencing is a DNA sequencing-by-synthesis method that detects light emitted during nucleotide incorporation, offering a faster and more cost-effective alternative to the traditional Sanger method. It uses a cascade of enzymatic...

The Rh factor is a protein found on red blood cells; individuals with it are Rh positive, while those without are Rh negative, and it is inherited genetically. Rh incompatibility occurs during pregnancy if an Rh-negative mother carries...

This video explains a small trick to solve any direction sense problem correctly within one minute.

Zinc Finger Nucleases (ZFNs) are engineered molecular tools composed of a zinc finger DNA-binding domain fused to a FokI DNA-cleavage domain, allowing precise targeting and cutting of specific DNA sequences. Once the DNA is cut, natural...

Blood grouping is based on the presence of specific antigens—A, B, and H—on red blood cells, encoded by the ABO gene system. Individuals with blood type A have A antigens and anti-B antibodies, B has B antigens and anti-A antibodies, AB...

Maxam–Gilbert sequencing is a method of DNA sequencing developed by Allan Maxam and Walter Gilbert in 1976–1977. This method is based on nucleobase-specific partial chemical modification of DNA and subsequent cleavage of the DNA backbone...

Practice life sciences questions using real examples from 2012.

Humans inherit two alleles for each gene, and their interaction determines how traits are expressed—homozygous if both alleles are the same, and heterozygous if they differ. In complete dominance, one allele masks the other; in...