Answer:
<u><em>Ancestors</em></u>
Explanation:
Ancestors can be described as the persons from which a particular human being originated. In a broader perspective, it is referred to family history of a person. Scientists believe that all organisms on Earth originated from a common ancestor which were the prokaryotes. The prokaryotes with time gave rise to the eukaryotes. Common descent is the phenomenon in which organisms having common ancestors are referred.
Photosynthesis takes in carbon dioxide & lets out oxygen & glucose
Answer:
Option (A).
Explanation:
Mendel is known as the father of genetics. He explains the concept of dominance and introduces the law of segregation and law of independent assortment.
The law of independent assortment explains that the segregation of one pair of character is independent on the other character. The law of independent assortment is valid because the trait used by the Mendel are located on different chromosome and does not show the linkage.
Thus, the correct answer is option (A).
The answers are:
<span>a. -/b+
</span><span>d. b/b+</span>
b+ - the allele for normal bristles
b - the allele for bent pristles
Monosomic means there is only one instead of two alleles in a gene locus.
So, the parents' genotypes are:
<span>monosomic bent bristles: -/b
</span><span>diploid normal bristles: b+/b+
</span><span>The following cross is conducted of true-breeding adult flies:
Parents' phenotype: monosomic bent bristles x diploid normal bristles
Parents' genotype: -/b x b+/b+
F1 generation: -/b+ -/b+ b/b+ b/b+</span>
They spend 99% in interphase and 1% in cell division
