Meiosis
These structures are two identical copies of a chromosome attached at a centromere.
What are sister chromatids?
During this process, a mass of abnormally dividing cells forms in a tissue.
What is tumor formation?
The specific nitrogenous base found in RNA but not in DNA replaces thymine during transcription.
What is uracil?
This permanent change in the DNA sequence of a chromosome can lead to genetic disorders or variation.
What is a mutation?
In the cell cycle, DNA replication occurs during this specific phase.
What is the S phase of interphase?
During this phase of mitosis, chromosomes line up along the equator of the cell.
What is metaphase?
This molecule brings amino acids to the ribosome, matching its anticodon with codons on the mRNA.
What is transfer RNA (tRNA)?
These types of tumors, such as warts, do not spread to other tissues.
What are benign tumors?
This is the process of cell division that results in two genetically identical diploid cells.
What is mitosis?
This is the process of cell division that results in two genetically identical diploid cells.
What is mitosis?
This enzyme unzips the DNA double helix during replication by breaking hydrogen bonds between base pairs.
What is helicase?
This component of DNA nucleotides determines the differences between them.
What is the nitrogenous base?
HeLa cells are a type of these cells, which divide uncontrollably and are used extensively in research.
What are cancer cells?
Final phase of mitosis
Telophase
Clue: This process involves the synthesis of a complementary mRNA strand from a DNA template.
What is transcription?
This term describes a gene that, when mutated, can transform a normal cell into a tumor cell.
What is an oncogene?
This process during Prophase I of meiosis allows for genetic variation by exchanging DNA segments between homologous chromosomes.
What is crossing over?
This error during meiosis, where chromosomes fail to separate properly, can lead to disorders like Down syndrome.
What is nondisjunction?
During protein synthesis, the ribosome moves along the mRNA strand in this direction.
What is 5' to 3' direction?
Homologous chromosomes line up in pairs along the equator during this specific phase of meiosis.
What is Metaphase I?