How do I count positive and negative numbers in Excel? Here, the COUNTIF function can help you quickly to count how many positive numbers or negative numbers in a range. Notes: 1. If you want to count the number of negative values only, please apply this formula =COUNTIF($A$1:$D$7,”<0″). Can Excel Count negative numbers? To count […]
How do I find carrier frequency?
How do I find carrier frequency? The carrier frequency can then be calculated as 2X99/100×1/100 which approximates to 1 in 50. Thus a rough approximation of the carrier frequency can be obtained by doubling the square root of the disease incidence. For an X-linked disorder the frequency of affected males equals the frequency of the […]
Which cancer is known as the silent killer?
Which cancer is known as the silent killer? Pancreatic Cancer: The Silent Killer. Which cancers are easiest to treat? What are the most curable cancers? Breast cancer. Prostate cancer. Testicular cancer. Thyroid cancer. Melanoma. Cervical cancer. Hodgkin lymphoma. Takeaway. Which cancers are the most painful? Primary tumors in the following locations are associated with a […]
Who first invented the battery?
Who first invented the battery? Alessandro Volta When did Alessandro Volta create the battery? 1800 What did the first battery look like? “This was the first battery that we know of, and it was basically a clay jar with a copper cylinder, probably surrounded by lemon juice or something like that.” Supposedly discovered in 1936, […]
Where in the sky is the Christmas star?
Where in the sky is the Christmas star? Those looking to see the star will want to look above the southwestern or western horizon after sunset, experts said. Why is it called the Christmas Star? The Star of Bethlehem, or Christmas Star, appears in the nativity story of the Gospel of Matthew where “wise men […]
Why is Common Core bad?
Why is Common Core bad? By focusing on grade-level skills that are highly academic in nature, the Common Core puts pressure on teachers at the early childhood and primary levels to teach using paper-and-pencil methods rather than using the rich exploratory experiential learning approaches that are developmentally appropriate for children from … What is the […]
Is a pencil sharpener a system?
Is a pencil sharpener a system? why a pencil SHARPENER consists of 2 simple machines: The old fashioned pencil sharpeners that are mounted to the wall and cranked by a handle are an example of a compound machine that consists two simple machines: the wheel and axle and a wedge. What type of lever is […]
What proofreads the DNA for mistakes?
What proofreads the DNA for mistakes? Most of the mistakes during DNA replication are promptly corrected by DNA polymerase which proofreads the base that has just been added. The polymerase checks whether the newly-added base has paired correctly with the base in the template strand. If it is the correct base, the next nucleotide is […]
What are the different ocean currents that carry warm water give at least three examples?
What are the different ocean currents that carry warm water give at least three examples? They carry warm water from the tropics poleward. Examples include the Gulf Stream, the Agulhas Current, and the Kuroshio. Cold currents flow toward the equator on the eastern side of ocean basins. What is the purpose of prevailing winds? Due […]
Can 2 angles be supplementary if both of them are obtuse?
Can 2 angles be supplementary if both of them are obtuse? As we know that obtuse angle is always greater than 900. So, the sum of two obtuse angles always makes greater than 1800. ∴Sum of two obtuse angles cannot make a supplementary angle. Can two angles be supplementary if both of them are? Thus, […]