ch 21 learnsmart
A gene chip is also called a(n)
DNA microarray
The total genetic composition of an organism or species is the _____.
genome
During a researcher's in situ hybridization procedure, what causes the probe to stick to the chromosome?
Complementary base pairing to the corresponding gene
Match each type of chromosome mapping with the correct description.
Cytogenetic mapping --> Determination of the locations of specific sequences relative to bands on chromosomes Linkage mapping --> Determining the relative locations of genes on a chromosome based on their frequency of genetic recombination Physical mapping --> Determining the locations of genes and other DNA sequences using DNA cloning techniques
"FISH" stands for _____ in situ hybridization.
fluorescence
During FISH, the location of a bound probe can be detected through the emission of _____ light.
fluorescent
The most common method of in situ hybridization uses ______ DNA probes.
fluorescent
Another term for DNA microarray is _____ _____.
gene chip
A fluorescence microscope is used to detect bound DNA probes in FISH. To detect the fluorescent molecules, the sample is illuminated with light, and then the fluorescent molecules emit ______ wavelength light, which is transmitted and detected.
longer
Geneticists use several types of mapping strategies to identify the locations of genes. The approach that relies on DNA cloning techniques and allows computation of distances in base pairs is _____ mapping. The technique that is based on recombination frequencies between genes is _____ mapping. The technique that locates genes relative to bands on chromosomes that are visible by microscopy is _____ mapping.
physical; linkage; cytogenetic
Which of the following techniques is commonly used for cytogenetic mapping?
In situ hybridization
In genetics, the experimental process of determining the relative locations of genes or other DNA segments along individual chromosomes is referred to as _____.
mapping
An organism's genome is its
total genetic composition.
