Answer:
D. 1 BB : 2 Bb : 1 bb
Explanation:
This question involves a single gene coding for fur color in guinea pig. Black fur (B) is dominant over white fur (b). This means that, as stated in the question, if a black fur parent (BB) is crossed with a white fur parent (bb), a 100% heterozygous offspring (Bb) with black fur will result.
If two heterozygous guinea pigs are crossed i.e. Bb × Bb, the following gametes will be produced by each heterozygous parent:
Bb = B and b
Using these gametes in a punnet square (see attached image), offsprings with the following genotypic ratio will be produced:
1 BB : 2 Bb : 1 bb
BB and Bb = black fur guinea pigs
bb = white fur guinea pigs
Answer:
Peanut butter
All single carbon-to-carbon bonds
Sunflower oil
At least one double carbon-to-carbon bond
Cheddar cheese
All single carbon-to-carbon bonds
Explanation: I did it on Edge 2020 and it was correct.
Answer:
If 32 packed volume units of cells are separated from 46 volume units of plasma from a blood sample, the hematocrit is <u>41,02%</u> percent. The hematocrit value is <u>within the normal</u> range.
Explanation:
Hello!
Hematocrit (or packed cell volume -PCV-)is defined as the percentage of red blood cells (vol%) in a blood sample. One common method of determining it is by centrifuging a heparinized blood sample in a capillary tube at 10 000 RPM for five minutes. This separates the blood sample in two layers, formed elements (RBC and WBC) and Plasma.
The length of the layers is directly measured from the tube and represents the volume of packed cells and plasma. Since the number of white cells is negligible compared to the number of red cells, the formed elements are considered to represent the red blood cells.
The hematocrit can be calculated as the volume of packed cells divided by the total volume of the blood sample.
<u>In the question:</u>
= 
= 41,02%
In humans the normal hematocrit range is 40,7% to 50,3% for men and 36,1% to 44,3%. Taking these reference values into consideration, this sample is within the normal range.
I hope you have a SUPER day!
Answer:
c. Only one of the statements is true
Explanation:
Quaternary structure, the highest level of protein organization in which association of several protein chains are closely arranged. The protein subunits are attached together by van der Waals forces and hydrogen bonds between nonpolar side chains. it is present in all the proteins which have 80 or more amino acids are present.
Collagen, is most abundant protein in the animal kingdom. It is insoluble fibrous protein present in the extracellular matrix and in connective tissue.
A protein chain has directionality consist of a free amino group at one end, and a free carboxyl group on other end.
Hence, only (2) statement is true the correct option is c.
Answer:
Cell organelle
Explanation:
The cell organelle is the small organ-like structure present inside the cell in the cytoplasm.
Different types of cell organelles are present in the cell which performs specific functions like of storage, of digestion of biomolecules like lysosomes, of protein synthesis and many others.
The organelles are usually enclosed by either a single phospholipid membrane like in lysosomes, Golgi apparatus or two lipid layers like in nucleus and chloroplast.
Thus, cell organelle is the correct answer.
