(03.01 MC)During which stage of the cell cycle does the cell condense chromosomes and break down the nuclear envelope?

(02.04 MC)The diagram below shows a cell placed in a solution.What will most likely happen to the cell?

(03.04 MC)If an individual is trisomic for chromosome 21, resulting in Down syndrome, and has an extra chromosome in each cell, what mutation must have occurred?

(01.03 MC)One explanation of life’s origins suggests that meteorites gave way to life on Earth. Which of the following provides evidence to support this idea?

(03.01 LC)While some mutations can benefit an organism, others are harmful and can lead to cancer. Which of the following best describes how mutations can cause cancer in an organism?

(01.01 HC)Several groups of researchers conducted experiments to study how students’ diets affected their performance in school. Researchers asked students to record what they ate every day for a year. The findings suggested that students who ate a higher amount of vegetables as compared to protein tended to have better grades. What can the researchers validly claim based on these findings?

(02.03 MC)Which of the following best describes what happens after a lysosome is made in the rough endoplasmic reticulum of a plant cell?

(03.03 HC)   U   C   A   G       UUU Phenylalanine UCU Serine UAU Tyrosine UGU Cysteine U U UUC Phenylalanine UCC Serine UAC Tyrosine UGC Cysteine C   UUA Leucine UCA Serine UAA Stop UGA Stop A   UUG Leucine UCG Serine UAG Stop UGG Tryptophan G   CUU Leucine CCU Proline CAU Histidine CGU Arginine U C CUC Leucine CCC Proline CAC Histidine CGC Arginine C   CUA Leucine CCA Proline CAA Glutamine CGA Arginine A   CUG Leucine CCG Proline CAG Glutamine CGG Arginine G   AUU Isoleucine ACU Threonine AAU Asparagine AGU Serine U A AUC Isoleucine ACC Threonine AAC Asparagine AGC Serine C   AUA Isoleucine ACA Threonine AAA Lysine AGA Arginine A   AUG Methionine/Start ACG Threonine AAG Lysine AGG Arginine G   GUU Valine GCU Alanine GAU Aspartate GGU Glycine U G GUC Valine GCC Alanine GAC Aspartate GGC Glycine C   GUA Valine GCA Alanine GAA Glutamate GGA Glycine A   GUG Valine GCG Alanine GAG Glutamate GGG Glycine G If an error in transcription causes the last cytosine in an mRNA sequence that was supposed to read UUG AUC CAA UGC to be replaced with a guanine, which of the following do you predict would happen?

(02.03 MC)Which of the following best describes what happens after a lysosome is made in the rough endoplasmic reticulum of a plant cell?

(01.01 LC)Which question can be answered by science?