Answer:
C. Is a repeated sequence of DNA in a non- coding sequence
D. Can be composed of a variable number of repeats in different people
Explanation:
Short Tandem Repeats (STRs) are short DNA motifs, i.e., short nucleotide repeat units (generally 2-7 base pairs in size) that may have a different number of repeats among individuals (alleles). Polymorphic STR sequences are very useful genetic markers and therefore they are used for different purposes, e.g., for constructing genome linkage maps, identification of individuals and/or populations, paternity testing, etc. For example, in the USA, the Combined DNA Index System (CODIS) is a databank that stores different DNA profiles based on 13 core STR <em>loci</em> which are used in forensic identity testing.
Eukaryotes are single cellular organisms so A D C
Answer:
The correct answer is option- It brings in only a specifically targeted substance.
Explanation:
Endocytosis is the process by which cell engulfs or internalized the metabolites or molecules in the cell. Endocytosis is of three types phagocytosis, pinocytosis, and receptor-mediated endocytosis.
Receptor-mediated endocytosis is the process in which specific metabolite or hormone molecules are internalized in the cell. where is the phagocytosis all macromolecule or faulty cell or dead cells
Thus, the correct answer is option - It brings in only a specifically targeted substance.
Answer:
Letter A. G-protein coupled receptor
Explanation:
G protein-coupled receptors are a large protein family of transmembrane receptors that pick up extracellular signals and activate signal transduction pathways within the cell. They start this transduction through a chain of events triggered by phosphorylation.
In this question, we may be confused by the options that involve protein kinase, but we have to consider only cell surface receptors, as the request in question.
Answer:
-Burning coal, oil and gas produces carbon dioxide and nitrous oxide.
-Cutting down forests (deforestation). ... Increasing livestock farming. ...
-Fertilisers containing nitrogen produce nitrous -oxide emissions.
-Fluorinated gases are emitted from equipment and products that use these gases.
