Attached Earlobes are recessive human trait. The shaded individuals in the pedigree Diagram below have both attached earlobes. The person labeled X is most likely to be? D) a male with one recessive allele

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

In tomato plants, mendel found that the allele for smooth seeds (s) is dominant, while the allele for wrinkled seeds (s) is recessive. which of these punnett squares shows crosses between two plants heterozygous for smooth seeds? i need this to be answered as soon as ! sry the picture is bad quality

How can you tell the difference between rough er from smooth er?