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Anettt [7]
3 years ago
8

Which of the following is a clue that a chemical change has taken place?

Biology
2 answers:
Delicious77 [7]3 years ago
5 0

Answer:

During a chemical change, the composition of matter always changes. Four possible clues to chemical change include a transfer of energy, a change in color, the production of a gas, or the formation of a precipitate.

Explanation:

Lesechka [4]3 years ago
3 0
The signs of a chemical change include color change, the production of an odor, a change in temperature, the formation of bubbles, and the formation of a precipitate. Hope this helps! ;)
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Answer:

D

Explanation:

This involves a dihybrid inheritance I.e. two genes are being passed on. During meiosis, specifically, the Prophase stage, homologous chromosomes (similar but non-identical chromosomes received from each parent) line side by side. According to the question, one chromosome contains A and B alleles and its homologue, received by the other parent carries a and b alleles. This means that the diploid individual has a genotype AaBb for that gene.

According to Mendel's law of independent assortment, the alleles separate independently of one another into gametes. I.e. allele A and a separates into the gametes without affecting alleles B and b of the other gene.

Crossing-over, which is the exchange of chromosomal segment occurs between the two homologues. Hence, the exchange of chromosomal segments containing alleles in the individual will possibly produce four gametes with the genotypes: AB, Ab, aB, ab.

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4 years ago
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Kay [80]
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The right options are;

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