If Tom Harris had type AB blood and Mary had type O, could the type O child they brought home be their child? * No, the baby would have to have inherited a gene for O from both parents and Tom has only a gene for A or B. Yes, both parents had the recessive hidden gene for O blood in their genotype which they passed on to the baby. No; the baby would have to have Type AB blood that it inherited from the father since A and B are dominate to O. Yes; the baby inherited type O blood from the mother Mary Harris which is dominant to the genes for both A and B.
The study of blood is called hematology. The component of blood is RBC, WBC, platelets, and plasma.
The correct answer to the question is option B.
What is a blood group?
A blood type is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells.
These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system.
The genes A and B are dominant over O therefore the O blood group can not be seen in offspring.
Hence, the correct answer to the question is option B is Yes, both parents had the recessive hidden gene for O blood in their genotype which they passed on to the baby. No; the baby would have to have Type AB blood that it inherited from the father since A and B are dominant to O.
For more information about the blood group, refer to the link:-
You want to make 50 ml of 1X tricaine solution in order to euthanize some fish. How much of a 20X tricaine stock solution will you need to dilute in order to make your solution?a. 1 ml b. 5 ml c. 0.4 ml d. 10 ml e. 2.5 ml
Answer: e. 2.5 ml
According to the dilution law,
= concentration of stock solution = 20X
= volume of stock solution = ?
= concentration of required solution= 1X
= volume of required solution= 50 ml
Thus 2.5 ml much of a 20X tricaine stock solution is needed to dilute in order to make your solution.
Which situation probably involves autoantibodies?
Autoantibodies are also reffered to as natural antibodies. This antibody react with self molecules in the body system to fight against infection.
This antibodies are produced by genes that are not mutated.
They provide the immediate defence against disease or infection and help in keeping the body fit.
They are useful in the regulation of body function or activities i.e homeostasis
Autoantibodies are useful as biological marker in targeting some disease that are present in the body as they could be specific to certain organs in the body.
) How many cells can be grown in a 5 mL culture using minimal medium before the medium exhausts the carbon?
The question is not complete. Remaining part of the question is as follows - Minimal growth medium for bacteria such as E. coli includes various salts with characteristic concentrations in the mM range and a carbon source. The carbon source is typically glucose and it is used at 0.5% (a concentration of 0.5 g/100 mL). For nitrogen, minimal medium contains ammonium chloride (NH4Cl) with a concentration of 0.1g/100 mL
How many cells can be grown in a 5 mL culture using minimal medium before the medium exhausts the carbon?
We will first find the mass concentration of 0.5 g/100 mL of solution.
gram per ml of glucose
The chemical formula of glucose is
The molecular weight of glucose molecule is grams per mole
Now, we will find the number of moles of glucose in a 5 ml medium -
The number of carbon atom in each glucose molecule is equal to six, thus, number of minimal carbon mole is equal to
Number of carbon atoms is equal to
One bacteria has carbon molecule.Thus, ml medium will have bacteria