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>.
<span>Since purple is dominant over white, it is fair to say that white is recessive. The crossing over of two white plants suggest that the parents are both homozygous recessive. Crossing over of 2 homozygous recessive white plants would produce progeny. In the production of 1000 offspring by two white plants, all of the1000 progeny would be white as well.</span>
Answer:
Rivers possess different features as they age. Old rivers usually have a low stream (gentle) gradient and low erosive energy. They usually have broad U shape, the water is usually brown and they have flood plains. Seasonal floods are also common.
By the heat of the enegry
