Chromosomes select all that apply -always occur in pairs
-are tight coils of dna
-can be analyzed in a karyotype
-carry thousands of genes
-are carried on genes

Why is it important that human chromosomes have many origins of replication

Will mark brainliest if correct/available! which of the following statements is true? all plants need flowers to sexually reproduce. sexually reproduced offspring are identical to their parents. fertilization always occurs inside the female's body. a body cell has twice the number of chromosomes as an egg cell.

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries