Answer:
C. It is a male with atleast one dominant allele
Explanation:
In the given pedigree, the two normal parents of the generation I have one daughter with the attached earlobe. Since the trait is recessive, the daughter should be homozygous recessive to express the trait. The genotype of the daughter (shaded circle in generation II) is "aa". To have a daughter with "aa" genotype, both the parents should have one copy of "a" allele. So, the genotype of both parents is "Aa".
In generation II, individual A is non-shaded square. Squares represent males in a pedigree. Since its not shaded, it does not have attached earlobe. Both the parents are heterozygous dominant for attached earlobes (Aa x Aa = 1/4 AA : 1/2 Aa : 1/4 aa). The genotype of this individual may be AA or Aa.
Most organisms rely on the sun as a primary source of energy
Plant mass that is related to H20.
Answer:
TIME: a single bacterium can multiply to over two million in just seven hours.
WARMTH: the 'danger zone' temperatures at which bacteria grow best are between 5 Celsius and 63 Celsius.
FOOD: like any other living things, germs need food to grow.
WATER: Bacteria need moisture to grow.
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