The following genes have been mapped from left to right on the X chromosome of Drosophila using recombination frequency. The numbers indicate the map distance between genes in cM: Yellow (1.4) White (19.6) Singed The gene Ruby exhibits 7.5% recombination with Yellow and 13.5% recombination with Singed. What is the location of Ruby with respect to the White gene

Which of the following structures is not found in both plant and animal cells? a) chloroplast b) cytoskeleton c) ribosomes d) mitochondria

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

4. how does a phospholipid behave in water? the phosphate head does not mix with water; the fatty acid tails do. the phosphate head and the fatty acid tails mix with water. the phosphate head and the fatty acid tails do not mix with water. the phosphate head mixes with water; the fatty acid tails do not.