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11 answers
a Each set of instructions is a protein.
b The interlocking bricks are the chromosomes.
c The manual is a chromosome.
d Each structure is a gene.
In the context of the provided analogy, the correct statement would be:
d Each structure is a gene.
Here's the reasoning:
- The manual represents the overall blueprint for building various structures, similar to how a chromosome contains many genes.
- The interlocking bricks represent the building blocks (like nucleotides) that combine in various ways to create structures (like proteins), but in this analogy, they don’t equate to chromosomes.
- Each specific structure built from the bricks corresponds to a gene, which is a specific segment of DNA that codes for a particular protein.
So, the analogy aligns best with option (d).
a they are both a part of dna
b they both encode a single protein
c they both contain genetic material
d they are both found on chromatids
The correct answer to how chromosomes and genes are alike is:
c they both contain genetic material.
Here's the reasoning for each option:
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a they are both a part of DNA: While genes are segments of DNA, chromosomes are structures that consist of DNA wrapped around proteins. So, not all parts of a chromosome are DNA specifically.
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b they both encode a single protein: This is not true. A gene usually encodes a single protein, but a chromosome can contain many genes, so this statement is misleading.
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c they both contain genetic material: This is correct because chromosomes are made up of DNA, and genes are segments of that DNA containing the instructions for making proteins.
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d they are both found on chromatids: This is somewhat true, but it’s more specific to the structure during cell division. Chromatids are the two identical halves of a duplicated chromosome, and while genes are indeed on chromatids, this does not directly express how they are alike in a broader sense.
Therefore, option c is the most accurate choice.
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a round
b some round some wrinkled
c wrinkled
d slightly wrinkled
In pea plants, since the allele for round peas (R) is dominant over the allele for wrinkled peas (r), a pea plant with the genotype Rr will express the dominant phenotype.
Therefore, the correct answer is:
a round.
The presence of one dominant allele (R) is enough to determine the round phenotype.
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