Answer:
A. A segment of DNA molecule
Explanation:
(a sequence of bases) that codes for a particular protein and determines the traits (phenotype) of the individual. A gene is the basic unit of heredity in a living organism.
Answer:
A population ecologist uses many terms while writing his case study. Match each term to its definition.
an indication of the number of individuals of a population and the area that they occupy
population density
an increase in the number of individuals of a species over a period of time, expressed as a percentage
growth rate
the number of live births per 1,000 organisms of a species in a year
Birth rate
the number of deaths per 1,000 organisms of a species in a year
death rate
Explanation:
Answer:
Fishing: primary, manufacturing, textile: secondary, insurance, banking: tertiary
Explanation:
The primary activities are agriculture, livestock, mining, fishing, forrestal exploitation (they arise based on natural resources). With respect to secondary schools, primary resources are used to transform them, for example the tomato grown to make a can of tomatoes (manufacturing industries). In the case of tertiary activities, we refer to services, which are necessary for previous activities (telecommunications, financial activity, marketing, etc.)
The cell wall gives cells shape, enables plant growth, prevents bursting from water pressure, keeps out water and pathogens, stores carbohydrates and sends signals to cells. The flexible cell wall surrounds plant cell membranes.
Plant cell walls perform many functions. Their main task is to support proper plant growth. This is accomplished by the cell wall creating a skeleton-like frame that enables plants to grow vertically and develop a rigid stem. Cell walls vary considerably in thickness and organization, which accounts for the wide range of plant shapes and sizes on the planet. They consist of two layers ‰ÛÓ a primary cell wall, which supports the cell as it matures, and a rigid secondary cell wall that appears after the primary wall stops growing. The primary cell wall is thinner and more flexible than the secondary wall. Internally, the primary and secondary walls have a similar physical composition. Over the course of a plant's life, they perform complementary functions to keep the plant healthy and vibrant.
Answer:
The Various Kinases that is activated after the breaks in DNA is after the activation of ATM serine threonine kinase which helps in phosphorylation of other DNA replication check proteins, p53 protein (tumor suppressor protein) etc.
Explanation:
ATM activated by MRN complex at the site of DNA double stranded breaks by phosphorylation. MRN complex activity on ATM induces a conformational change in ATM kinase. So it can bind to its various substrate molecules that helps in DNA replication cycle arrest.
ATM phosphorylates CHK2 protein a product of CHEK2 gene, also known as effector kinases that phosphorylates and helps in deactivation of cyclin dependent kinases (CDKs) that helps in the prevention of progression of mitotic phase.
ATM also phosphorylates the inhibitors of p53 proteins which leads to the overexpression of p21, an inhibitor of (CDKs).
