Which best describes the structure of DNA?

A. Alleles held together by genes

B. A tetrad with two sister chromatids

C. Nucleic acids arranged in a double helix

D. Chromosomes linked in a loop

Why do all cells contain dna

Given these structures: 1. whole muscle 2. muscle fiber (cell) 3. myofilament 4. myofibril 5. muscle fasciculus Choose the arrangement that lists the structures in the correct order from the largest to the smallest structure.

What tool is most accurate measurement of time in a laboratory experiment involving sprinting times of students

Why is clicking a pen an example of mechanical energy?

4. How does energy release from the sun reach Earth? How does the sun's energy interact with Earth's atmosphere and hydrosphere?

Illustrate the factors that allow the aquatic pyramid of biomass to be inverted.

Which organisms are prokaryotic? plants people bacteria fungi

Describe some of the modifications that polypeptide chains undergo before becoming functional proteins

What part of the male urogenital tract is shared by the urinary and reproductive systems? the prostate gland the seminal vesicles the vas deferens the urethra

What is The relationship between the various levels of organization in plants and animals