Living organisms are categorized into two major groups based on the presence or absence of a nucleus. What group is defined by the presence of a nucleus?

A) eukaryotic organism

B) virus

C) bacterium

D) prokaryotic organism

E) mitochondrial organism

A

What is the name of the membranous structure that compartmentalizes the cytoplasm of eukaryotic organisms?

A) ribosome

B) mitochondria

C) cytosol

D) endoplasmic reticulum

E) nucleoid

D

The diploid chromosome number of an organism is usually represented as 2n. Humans have a diploid chromosome number of 46. What would be the expected haploid chromosome number in a human?

A) 92

B) 16

C) 12

D) 24

E) 23

E

Which chromosome has a telomere but the p arm is much shorter than the q arm?

A) metacentric

B) submetacentric

C) acrocentric

D) telocentric

E) sex chromosome

C

The nucleolus organizer region (NOR) is responsible for production of what type of cell structure?

A) nucleolus

B) ribosome

C) chromatids

D) mitochondria

E) endoplasmic reticulum

B