Punjab Livestock Development Board (60)
Department of Animal Husbandry, Dairy Development and Fisheries (39)
PUNJAB STATE SEEDS CORPORATION LIMITED (PUNSEED) (153)
PUNJAB STATE CONTAINER AND WAREHOUSING CORPORATION (51)
Computer Knowledge – Basic General Computer Awareness What is a Computer? Computer: A Computer is a General-purpose machine, commonly consisting of digital circuitry, that accepts (inputs), stores, manipulates, and generates (outputs) data as numbers, text, graphics, voice, video files, or …
Cyclic And Non Cyclic Photophosphorylation We all are well aware of the complete process of photosynthesis. Yes, it is the biological process of converting light energy into chemical energy. In this process, light energy is captured and used for converting …
Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide. Photosynthesis …
“Transportation is the process that involves the movement of water and necessary nutrients to all parts of the plant for its survival. “ Transportation is a vital process in plants. Trees transport all the nutrients and water it needs for survival …
Plants are an essential part of the ecosystem. Every life on the earth is directly or indirectly dependent on plants. Among the different parts of a plant, the leaf is the most essential. Primarily, leaves have two functions: photosynthesis and …
What is a Stem? The stem is the ascending part of the axis bearing branches, leaves, flowers and fruits. It develops from the plumule of the embryo of a germinating seed. It bears nodes and internodes. What are nodes and internodes? The regions …
Modifications of Stem The stem helps in providing structure and support to the plant. It is modified into three important types: Underground Modifications Sub-aerial Modifications Aerial Modifications Underground Modifications of Stem Some underground stems are modified for food storage and …
The root is an underground part of the plant that absorbs water and minerals from the soil and anchors the plant firmly. In some plants, the roots change their shape and get modified to absorb and transport water and minerals …
Morphology is the name given to the science that deals with the study of the form and structure of things. No matter which plant you take, the morphology of a flowering plant includes the roots, stem, leaves, flowers, and fruits. …
Racemose is a type of an inflorescence where the main axis continues to grow indefinitely and does not terminate in flower. This is why it is also known as an indefinite or indeterminate inflorescence. The main characteristics are: Growth of the …
Inflorescence The pattern of flower arrangement on the floral axis is known as inflorescence. Inflorescence is divided into two main types: Racemose: In racemose types of inflorescence, the main axis grows continuously and flowers are present laterally on the floral axis. …
In this article we will discuss about:- 1. Definition of Botanical Garden 2. Functions of Botanical Gardens 3. History. Definition of Botanical Garden: The garden is generally defined as a place for growing flowers, fruits or vegetables. But botanic or botanical garden …
@ Natural selection @ can take many forms. To make talking about this easier, we will consider the distribution of traits across a population in graphical form. In we see the normal bell curve of trait distribution. For example, if …
# What do you understand by natural selection? Give examples. Natural selection is an important mechanism of evolution. It states that the organisms that are able to survive and reproduce with the changing environmental conditions are selected by nature while …
# Genetics and Evolution Notes # Genetics Genetics is the branch of science that deals with the study of genes, genetic variations and heredity in organisms. Genes are made up of DNA and are a type of genetic instruction. These …
The Modern Synthetic Theory of Evolution describes the evolution of life in terms of genetic changes occurring in the population that leads to the formation of new species. It also describes the genetic population or Mendelian population, gene pool and …
@# Charles Darwin, an English naturalist of the 19th century made an extensive study of nature for over 20 years. He collected the observations on animal distribution and the relationship between the living and extinct animals and finally found that …
## How Does Molecular Genetics Support Evolution? Genetics is one of the key aspects of evolution, and evolution is an ongoing process. The entire theory is supported with adequate genetic evidence to evolution. It is believed that we have descended …
@ Comparative anatomy @ is a study of the differences and similarities in the anatomy of two species. In general, it includes a comparison of body structures of two species. It is similar to phylogeny and evolutionary biology. Evolution is …