Which option explains why genes are sections of chromosomes, but chromosomes are not made up of genes?
A. Genes are partly in chromosomes and partly in proteins.
B. Genes are partly in chromosomes and partly in DNA.
C. There are sections of chromosomes that are not genes.
D. Each chromosome is its own, single gene.
i think c
None of the answer choices explain the statement made in the question, but answer choices A, B, and D are all incorrect statements. Answer choice C is the only statement that is true, although it doesn't explain the question.
thanks i dont know my school is kinda weird with their way of teaching
Haha luv
To determine the correct answer, let's break down the question and analyze each option:
A. Genes are partly in chromosomes and partly in proteins.
This option is not correct because genes are primarily composed of DNA, not proteins. While proteins play a role in gene expression and carrying out the instructions encoded by genes, they are not part of the gene itself.
B. Genes are partly in chromosomes and partly in DNA.
This option is a more accurate explanation. Genes are indeed located on chromosomes and are composed of DNA. Chromosomes are large molecules made up of DNA molecules tightly coiled around proteins called histones. Within chromosomes, specific sections of DNA called genes contain the instructions for producing a particular protein or performing a specific function.
C. There are sections of chromosomes that are not genes.
This option is correct. Chromosomes consist of many different sections, and not all sections are genes. Chromosomes contain various regulatory regions, repetitive DNA sequences, and other non-coding regions that do not encode protein-coding genes. These non-gene sections play important roles in gene regulation and chromosome structure.
D. Each chromosome is its own, single gene.
This option is incorrect. Each chromosome contains many genes rather than being represented by a single gene. On average, humans have about 20,000-25,000 genes spread across 46 chromosomes (22 autosomes and 2 sex chromosomes).
Considering the explanations provided, the correct answer is indeed option C: There are sections of chromosomes that are not genes.