Answer:
AB, ab, Ab and aB
Explanation:
The zygote has the genotype <em>AaBb </em>because it was formed by the fusion of a sperm cell <em>AB</em> and an egg <em>ab</em>.
During meiosis the diploid <em>AaBb</em> germ cell will reduce its chromosome number by half, producing a total of 4 haploid daughter cells (the gametes, in males the sperm cells) with just one allele per gene. The genes <em>A </em>and <em>B</em> are on different chromosomes, so they assort independently, and 4 types of gametes can therefore be produced: <em>AB, Ab, aB </em>and <em>ab</em>.
Answer:
a. Genotype of male parent= BbNn
Genotype of female parent: bbnn
b: Progeny ratio= 1: 1: 1: 1
c: 1/4
Explanation:
a. Genotype of male parent= BbNn
Genotype of female parent: bbnn
b. Gamete formed by the male parent: BN: Bn: bN: bn in 1:1:1:1 ratio.
Gametes formed by female parent: All gametes with "bn" alleles.
c. The probability that the offspring will have a genotype of Bbnn=
Bb x bb= 1/2 Bb: 1/2 bb
Nn x nn= 1/2 Nn: 1/2 nn
Therefore, probability that the offspring will have a genotype of Bbnn= 1/2 Bb x 1/2 nn= 1/2.
Answer:
Option (B).
Explanation:
Neurons or nerve cell are the basic structural and functional unit of the nervous system. Fibers are the thread like long projection of the nerve cells.
Neurons are classified into three fibers- Group A fibers, B fibers and C fibers. The group C fibers cannot capable of doing the saltatory conduction of the nerve impulse because they are unmyelinated.
Thus, the correct answer is option (B).
The elements are arranged from left to right and top to bottom in order of the increasing atomic number. The rows, are called periods.
