What causes the differences in physical characteristics like hair color among people?

A: different version of genes

B. Variations in DNA length

C. Different number of chromosomes

D. Variations in nucleus size

Hurry in a test

the right side of the picture going down is:

polymerase

protein

transport vesicle

modified protein

the left side of the picture going down is:

dna helix

single-stranded rna

endoplasmic reticulum

ribosome

golgi apparatus

protein released from vesicle

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hi, natural selection of the peppered moth during the industrial revolution in 19th-century england is an example of an outlier in the study of evolution. during this time, pollution from factories filled the forests, coating trees in a layer of soot—turning white trees black

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gokuson

the answer is b.) hydrogen bonds between bases.