Our genes can be affected by the environment and change the way our traits are displayed, called the phenotype. However, changes in phenotype have an underlying genotypic source. Epigenetics or epigenetic changes are changes in the way traits are expressed as an effect of the environment (i.e. food we ate, chemicals in the body, environmental stresses), without changes in the DNA. Simply put, in epigenetics, some parts of the DNA are turned on or off in response to environmental conditions.
Answer:
a. Mitochondrial DNA b. Morphology c. Plastic prints d. Herbert D. Macdonald e. Nuclear DNA f. Medulla
Explanation:
a. Found in small structures outside the nucleus of a cell and is inherited from the biological mother - Mitochondrial DNA
b. Hair’s form and structure Hair's morphology
c. Prints created when the finger touches a soft material like soap or putty - Plastic prints
d. Has studied bloodstains extensively and has offered a number of important observations about bloodstains - Herbert L. MacDonell.
e. Found in the nucleus of a cell and is inherited from both biological parents - Nuclear DNA
f. A set of cells that runs through a hair - medulla
Answer:
a) protons b) neutrons c) electrons d) +1 e) nucleus f) -1 g) atomic number h) mass number
Explanation:
Neutrophils component is deficient in a child who has a congenital immunodeficiency that impairs <u>B lymphocyte</u> function.
Neutrophils- A specific kind of white blood cell that aids in the body's defense against infection and is crucial to the immune system. White blood cells are one of the initial immune cells to react when bacteria or viruses enter the body.
B Lymphocytes- By generating antibodies, B cells are essential for pathogen-specific immunity. Immunoglobulins attached to the surface of B lymphocytes allow them to identify soluble antigens, causing them to develop into plasma cells, which can secrete immunoglobulins and produce antibodies. Primary lymphoid tissues include lymphocytes.
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