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Masja [62]
3 years ago
13

Where do you find elements grouped that have the most similar physical and chemical properties?

Biology
2 answers:
pogonyaev3 years ago
8 0

in vertical groups or families...................................

antiseptic1488 [7]3 years ago
7 0

The right option is; c. in vertical groups or families

In the periodic table of elements (a table in which all recognized elements are arranged in an informative series), elements grouped that have the most similar physical and chemical properties are placed in the vertical columns of elements known as groups or families. For example all of the group 1A elements possess one valence electron and have similar chemical and physical properties. Group 2A elements are alkaline earth metals and they also have similarities in electron configurations.

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0.45 from mom and 0.05 from dad.

Explanation:

The recombinant progeny might occur due to the crossing over at the time of meiosis in which the exchange of chromosomes occur in the homologous chromosomes of non sister chromatids.

The progeny receives half of their chromosome from the mother and half from the father. The mother 50% AZ and 50% az chromosomes respectively. The 10% recombination has occured due to which the mother chromosomes is reduce upto 45%. The recombinant  10% will be aZ and Az and has 5% frequency. Mom has the ability of az chromosomes is 0.45 %. The father has the genotype 50% Az and 50% aZ. The 10% recombination has occured due to which the father chromosomes is reduce upto 45%. The recombinant will be az and AZ with 5% frequency. So, father has az with 0.05 % probability.

Thus, the answer is 0.45 from mom and 0.05 from dad.

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