In an organism with a haploid number of 7, how many possible combinations of maternal and paternal chromosomes can occur in its gametes? Select one: O a.17= 7 O b. 72 = 49 O.27= 128 O d. 214 = 16 384

A prairie grass species called "little bluestem" is tetraploid. It has four complete sets of chromosomes. There are ten kinds of chromosomes; in other words, each complete set of chromosomes has a total of 10 chromosomes. A single somatic cell (e.g., a cell in a leaf) will have 40 chromosomes, 4 of each kind of chromsome, i.e., 4 of the number 1 chromsome, 4 of the number 2 chromsome, etc.  The illustration below shows prophase of meiosis 1 in chromosome number 10. In a diploid cell, there would be one tetrad (group of 4 chromatids) for each kind of chromosome.  For example, there would be one tetrad for chromosome 8, one for chromsome 9, etc.  When the tetraploid little bluestem undergoes meiosis, how many of chromosome number 10 will each sperm cell carry?

What is the designation for a gamete with one copy of each homologous chromosome? Select one: a. 3n b. 46 chromosomes c. n d. 2n

In a turtle species, a diploid cell in the G1 phase of the cell cycle contains 22 picograms of DNA (picogram is a measure of the total mass of the DNA present). How much DNA is present in a cell of the same species at prophase II of meiosis (prophase of the second meiotic division)?