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3 years ago

Explain the difference between an iconic compound and a molecule

Biology

1 answer:

qwelly [4]3 years ago

5 0

Answer:

Ionic compound are charged and molecule are neutral so lack charge .

Explanation:

Ionic compound are positively and negatively charged compound which loses or gain electron . Metal tends to lose an electron and get positive charge and non-metal tend to get negative charge by losing an electron. Molecules are neutral and have no net charge .molecule may be formed by a combination of two oppositely charged specie, an untimely forming neutral molecule

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3 years ago

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Thomas's biological mother and father are both gifted athletes. He was adopted by a couple who had no interest in him being invo

guajiro [1.7K]

Answer:phenotype

Explanation:

Phenotype is a physical appearance or biochemical characteristics which is influenced both by its genotypes and the environment. In other words,its a particular trait that is expressed, e.g. height,color,behaviour etc.

In the above mentioned case,Thomas inherited his parents's genotype(atheletic),but it was not expressed because of his adoptive parents' disinterest in sports.

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3 years ago

Hairlessness in American rat terriers is recessive to the presence of hair. Suppose that you have a rat terrier with hair. Expla

Reil [10]

Answer:

By performing a test cross i.e. a cross with a recessive trait

Explanation:

According to the question, hairlessness is a recessive trait, meaning that it will only be expressed in a homozygous condition i.e. when there are two recessive alleles in the genotype. Presence of hair is dominant, meaning that it will mask the phenotypic expression of hairlessness allele in a heterozygous state. Hence, a dominant phenotype can either be homozygous (same dominant allele) or heterozygous (combination of dominant and recessive alleles).

In order to determine which of these genotypes the dominant phenotype possess, we perform a test cross. A test cross is a cross performed to determine the genotype of the dominant organism by crossing it with a homozygous recessive genotype.

Ideally, the offsprings resulting from the cross will all be phenotypically dominant if the organism in question is homozygous dominant but if the organism is heterozygous dominant, the offsprings will occur in an equal ratio of dominant to recessive phenotypes.

So in this case, all of offsprings of this cross between the rat terriers will possess hair if the dominant rat terrier dog is homozygous, but if the dominant rat terrier dog is heterozygous, an hairless offspring will be produced.

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3 years ago

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Kryger [21]

Answer:

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3 years ago

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