Answer:
<h2>(14+16)/1000 *100= 3</h2>
Explanation:
Parental combinations are always more common then other recombinant progenies.
A female fly is heterozygous for three X-linked genes crossed with an abc/Y male. . If single crossover occurs between a & b and between b & c, then the double cross is that, which occurs in both.
Double cross over progeny are always least in number, so here double cross occurs are in abC 14 and ABc 16.
So we are expecting that number of double cross over progeny= (14+16)/1000 *100= 3
A Punnett square allows the prediction of the percentages of phenotypes in the offspring of a cross from known genotypes. A Punnett square can be used to determine a missing genotype based on the other genotypes involved in a cross.
hope it helps...
1.) The number of protons in the atomic number of the element. Like Carbon has 6 protons because it’s atomic number is 6. The atomic number is in the top left corner of most periodic tables.
2.) Silicon(Si)
3.) The number of electrons should be the same as the number of protons. If you are doing a Bohr model you put 2 electrons in the first ring, eight in the second ring and 18 in the third. Carbon should have 6 in its outer shells.
4.) Potassium(K)
5.) To fins neutrons subtract the atomic weight from the atomic number.
6.) Hydrogen(H)
7.) 30 neutrons, 56-26
8.) 17 protons, 17 electrons in the outer shell, and 18 neutrons
