[title] i. The table below lists the composition of the chromosomes (including chromosomes and sexual chromosomes) and the ratio of x to y of the double phytoacin (commonly known as wild spinachs) by sex, with 21 or (21 ± 1) chromosomes in the body cells known to be acidics, and table a refers to the chromosomes, with x and y being a sex chromosome but not a congener. Answer:
(1) the number of quadrants within primary sperm cells produced by acid simulators is 。
(2) acoustic female strains are mixed with male strains, and the expression type and proportion of the offspring is 。
(3) the separate strains of acid molds of different genders are grown, and seeds can be produced only if they are (filled with “same female”, “female” or “male”)。
Ii. The long and short wings of an insect are known to be controlled by the equivalent genes a, a, b and b by the same genes b, b, b and b, and by the independent ingenuity of two pairs. There are now single-winged female individuals and single-winged male individuals who mix, f1 females are both long-winged and male, and f1 females and females have mixed f2 long wings. Short-wings = 3. 1, long-wing . Short hair = 1. 1. To verify the type and proportion of ingredients produced by male individuals in f1, select the respective individuals from f2 to mix them, write a mix and predict the results。
Mixing: 。
Projected result: 。
