In a diploid cell, the number of alleles is the same as the number of genes.

Four nucleic-acid samples are analyzed to determine the percentages of the nucleotides they contain. Survey the data in the table to determine which samples are DNA and which are RNA, and specify whether each sample is double-stranded or single-stranded. Justify each answer.
[A table of nucleotide percentages appears below the problem]
              

Consider the following segment of DNA:
       5'-...ATGCCAGTCACTGACTTG...-3'
       3'-...TACGGTCAGTGACTGAAC...-5'

How many hydrogen bonds are present in this DNA segment?

Consider the following segment of DNA:
       5'-...ATGCCAGTCACTGACTTG...-3'
       3'-...TACGGTCAGTGACTGAAC...-5'

How many phosphodiester bonds are required to form this segment of double-stranded DNA?

Consider the following segment of DNA:
       5'-...ATGCCAGTCACTGACTTG...-3'
       3'-...TACGGTCAGTGACTGAAC...-5'

If the lower strand of DNA serves as the template transcribed into mRNA, how many peptide bonds are present in the polypeptide fragment into which the mRNA is translated?

What is an allele?

The chromosomal theory of inheritance states that….

Which one of the following is NOT a division of Genetics?

Compare and contrast the following terms:

homozygous and heterozygous