Podcast
Questions and Answers
What is the purpose of treating cells with colchicine in karyotype preparation?
What is the purpose of treating cells with colchicine in karyotype preparation?
- To induce DNA mutations for karyotype analysis
- To increase the number of metaphase chromosomes
- To arrest cells at metaphase for condensed chromosome characterization (correct)
- To prevent chromosome condensation
What is the purpose of arranging metaphase chromosomes in homologous pairs?
What is the purpose of arranging metaphase chromosomes in homologous pairs?
- To observe the arrangement of chromosomes during interphase
- To study the DNA replication process
- To determine the size and centromere location of chromosomes (correct)
- To identify the number of chromosomes in a cell
What is the purpose of photographing stained metaphase spreads in karyotype preparation?
What is the purpose of photographing stained metaphase spreads in karyotype preparation?
- To document and analyze chromosome arrangements (correct)
- To determine the genetic code of the organism
- To observe chromosome condensation process
- To count the number of chromosomes in each cell
Which stain is commonly used to prepare chromosomes for karyotyping?
Which stain is commonly used to prepare chromosomes for karyotyping?
Genetic linkage is the phenomenon in genes that are close together on the same chromosome tend to be transmitted ____________
Genetic linkage is the phenomenon in genes that are close together on the same chromosome tend to be transmitted ____________
A chromosome is a single piece of ________
A chromosome is a single piece of ________
Why are individual chromosomes cut and arranged in pairs in descending order during karyotype preparation?
Why are individual chromosomes cut and arranged in pairs in descending order during karyotype preparation?
Different versions of the same gene are called ____________
Different versions of the same gene are called ____________
Linked genes sit close together on a chromosome, making them likely to be inherited together. A chromosome is a single piece of ________.
Linked genes sit close together on a chromosome, making them likely to be inherited together. A chromosome is a single piece of ________.
During the formation of gametes, chromosomes go through a process called ____________
During the formation of gametes, chromosomes go through a process called ____________
A single chromosome can have hundreds of even thousands of ________.
A single chromosome can have hundreds of even thousands of ________.
Most sexually reproducing organisms, like people and pigeons, have two copies of each chromosome called ____________
Most sexually reproducing organisms, like people and pigeons, have two copies of each chromosome called ____________
Humans have 23 chromosome pairs, or 46 chromosomes in all. Homologous chromosomes have the same genes arranged in the same order, but they have slightly different ________ sequences.
Humans have 23 chromosome pairs, or 46 chromosomes in all. Homologous chromosomes have the same genes arranged in the same order, but they have slightly different ________ sequences.
During the formation of gametes (eggs and sperm in people and pigeons), chromosomes go through a process called ________.
During the formation of gametes (eggs and sperm in people and pigeons), chromosomes go through a process called ________.
Different versions of the same gene are called ________. Homologous chromosomes often contain different alleles.
Different versions of the same gene are called ________. Homologous chromosomes often contain different alleles.
