Answer:
9/16
Explanation:
The cross was Aa Bb CC X Aa Bb cc
Because genes assort independently, we can analyze each of them separately in the cross, calculate the probability of getting offpsring with a dominant allele, and then multiply each of those probabilities to obtain the overall probability of having A_B_C_ progeny.
<u>A/a</u>
Aa x Aa ---> 3/4 A_, 1/4 aa
<u>B/b</u>
Bb x Bb ---> 3/4 B_, 1/4 bb
<u>C/c</u>
CC x cc ---> 1 C_
3/4 × 3/4 × 1 = 9/16 A_B_C_ offspring.
Hi,
The answer is very simple and of basic nature, let us get into the basics.
We have studied since very long that atoms form chemical bonds with other atoms because they want to get stable. They can get stable through octet or duplet rule that means that atoms needs to have two (in the shell nearest to nucleus) and eight electrons in the outer most shell.
So, if an atom already has enough number of electrons that it is obeying octet or duplet rule, it means that the atom is stable. It will tend not to form a chemical bond with other atom by sharing, losing or gaining electrons. Now, the electrons in outer most shell are called valence electrons and they are distributed in sub-energy levels, s and p respectively. S orbital can accommodate only two electrons, while P can accommodate 6 electrons, d can accommodate 10 electrons while f orbital can accommodate 14 electrons. So, we can say that the bond formation is the most important property of an atom and it is strongly effected by number of electrons in an energy level.
In addition, number of electrons in outer most shell also effect many other properties of an atom like shielding or screening effect, metallic or non-metallic nature that also effects the chemical bonding of atoms. Since, metallic nature of an atom is due to its ability to lose outermost shell's electrons. Therefore, the whole phenomenon of chemical bonding is linked with number of electrons in outer most shell.
Hope it helps!
Answer:
The correct answer is option A. He could collect a large amount of data for a low cost.
Explanation:
A descriptive investigation is a method of the research or investigation where it describes only. The descriptive investigation should carry out the accurate, factual phenomena in a systematic way without influence any causal relationship.
the descriptive investigation does not tell about the reason and method of the phenomena that took place. All three options except option A are false statements in terms of descriptive investigative.
Thus, the correct answer is option A. He could collect a large amount of data for a low cost.
The land area that contributes water to a stream is called a watershed/drainage basin
let me know if you have any other questions
:)
Among the options, lupus can be the best answer. Lymphatic diseases can affect one's lymph,nodes and lymph vessels. Lupus is a systemic autoimmune disease occurring when one's immune system attacks one own tissues as well as organs. It can affect different systems in the body.
