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mylen [45]
3 years ago
13

The _________________ are new substances that are created following a chemical reaction.

Biology
2 answers:
dexar [7]3 years ago
5 0

Answer:

the chemical change

Explanation:

kotegsom [21]3 years ago
4 0

Answer:

<h3>Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.</h3>

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A survey reveals that 25 percent of a population of 1,000 individuals have attached earlobes (are homozygous recessive for the t
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Answer:

d. pxp +2pq

Explanation:

The formula for genotype frequency for a population in Hardy-Weinburg equilibrium is as under:

                           p² + 2pq + q² = 1

where, p = dominant allele

           q = recessive allele

Here,

 p² represents frequency of homozygous dominant genotype

2pq represents frequency of heterozygous genotype

q² represents frequency of homozygous recessive genotype

Also, although the genotypes p² & 2pq are different from each other yet phenotypically they both will collectively produce dominant trait i.e. free ear lobes not attached earlobes. So the term "p² + 2pq or pxp + 2pq" represents the frequency of the individuals who show the dominant phenotype in this particular population. Dominant phenotype will comprise 75% of the population.

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3 years ago
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A mating of two people of medium height (where three genes control height): AaBbCc x AaBbCc produce _____ distinct phenotypes de
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<u>Answer:</u>

A mating of two people of medium height (where three genes control height): AaBbCc x AaBbCc produce <u>Seven</u> distinct phenotypes determined by the number of genes inherited.

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<u>Explanation:</u>

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  • Offspring with AABBCC will be height whereas aabbcc will be dwarf. There will be offspring with different heights depending upon the dominant and recessive gene present in them.
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A substance that yields a cation <br> plus a hydroxyl ion in water is a
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