Interested in the proportion of nucleotides in the DNA of skin cells from a During their work to establish the structure of DNA, Watson and Crick were
particular organism. They considered the results from three different samples
done in the same laboratory, as shown in the table below.
Percentage of each nucleotide
Sample 1 Sample 2 Sample 3
Nucleotides in DNA
А
29
31
29
T
31
30
30
19
с
21
20
G
19
21
20
Why did Watson and Crick consider results from three samples?

Select all the correct answers. lactobacillus is a bacteria that live inside humans. these bacteria live on the nutrients from our bodies. they to keep our gut clean and healthy. s. typhi is a bacteria that enter our bodies through contaminated food. this bacteria causes infections in the body. based on this information, which two statements about the association between these bacteria and humans are true? a. lactobacillus shares a parasitic relationship with humans. b. s .typhi shares a parasitic relationship with humans. c. both lactobacillus and s. typhi share a parasitic relationship with humans. d. both lactobacillus and s. typhi share a mutualistic relationship with humans. e. lactobacillus shares a mutualistic relationship with humans, and s. typhi shares a parasitic relationship multiply chrse

The cluster of developing cells from conception until birth is called an

Which of these parts of the membrane large moecules pass through it ?