Which statement about thomas hunt morgan’s conclusion is true? 1.) traits like white eye color in fruit flies are recessive traits that are linked to the y chromosome. 2.) traits like white eye color in fruit flies must be linked to both x and y chromosomes to be expressed. 3.) traits like white eye color in fruit flies are dominant traits that are linked to x chromosomes. 4.) traits like white eye color in fruit flies are linked to the x chromosome.

Mouse liver cells were homogenized and the homogenate subjected to equilibrium density-gradient centrifugation with sucrose gradients. fractions obtained from these gradients were assayed for marker molecules (i.e., molecules that are limited to specific organelles). the results of these assays are shown in the figure. the marker molecules have the following functions: cytochrome oxidase is an enzyme involved in the process by which atp is formed in the complete aerobic degradation of glucose or fatty acids; ribosomal rna forms part of the protein-synthesizing ribosomes; catalase catalyzes decomposition of hydrogen peroxide; acid phosphatase hydrolysis monophosphoric esters at acid ph; cytidylyltransferase is involved in phospholipid biosynthesis; and amino acid permease aids in transport of amino acids across membranes. a) name the marker molecule and give the number of the fraction that is most enriched for each of the following cell components: lysosomes; peroxisomes; mitochondria; plasma membrane; rough endoplasmic reticulum; smooth endoplasmic reticulum.

About __ of the mass of the cell is water

During binary fission, what events must occur before the cell splits into two new cells?