Full question found from other source
The F2 generation phenotypes for each cross are shown in Table 1. (See attachment) Which of the following is the mean number per cross of F2 generation offspring that are the result of crossing over?
Answer:
B, 2.2
Explanation:
The parental genotypes are long and black vs short and white. Therefore the phenotypes that result from crossing over are long and white, and short and black. (middle two rows of the table). If we add up the total number of offspring with these genotypes we get 6 long whites, and 5 short blacks.
The total is 11 from 5 crosses, so the mean is 11/5 = 2.2
Answer;
Psychologists suspect that these mental deficits often results from growing up in a below average intellectual environment.
Explanation;
Cultural familial is a mental deficit in which no evidence of organic brain damage can be found; individuals' IQ range from 55 to 70. Psychologists suspects that these mental deficits often results from growing up in a below average intellectual environment.
Answer:
A and B are the answers.
Explanation:
Believe me I took a test a while ago with this question
The correct answer is - C) 667 x 10-13.
The constant that is used in the equation for gravity, or rather gravitational pull, is 0.0000000000667. This same number, in proper scientific notation goes in the shape of 667 x 10-13.
The reason for that is very simple. Any number multiplied with 10-13 will give the exact same number, but as the last part of 13 decimal number. The -13 part dictates the number of decimals. So in the case of 0.0000000000667, the last part 667 is the number that is multiplied, but because the multiplying is in minus, the number goes on the back of the number. Since it has three numbers in it, ten zeros are added in front of it, in order to get the 13 decimals.
