Flashcards in Genetics Deck (110)
Used to describe a part of the DNA molecule that contains the information needed to code for the types of protein and enzymes
Study of heredity
What are the four nitrogenous bases of DNA?
Adenine, cytosine, thymine, guanine
What does DNA do?
Directs protein synthesis
What are the two types of DNA?
Nuclear and mitochondrial
Accumulation of genes from gametes of two parents
Matrilineal inheritance-descent through the female line
Involved in the actual synthesis of cellular enzymes and proteins
Copies the meaningful strand of DNA and carries the message from nucleus to cytoplasm
Copying the meaningful strand of RNA
Selects the appropriate amino acids and carries them to ribosomal RNA
Forms 60% of the ribosome and assembles the proteins
Assembling the proteins
Inherited alteration of genetic material
What do mutations result from?
Substitution, loss or addition, or rearrangement of base pairs
Where might mutations arise?
Somatic or germ cells
Intracellular structures where genetic information is organized, stored, and retrieved
Examples of haploid cells
Ovum and sperm
Examples of diploid cells
Formation of 2 daughter nuclei containing the identical complements of the number of chromosomes characteristic of the somatic cells
Replication of germ cells that occurs only in gamete producing cells of the ovaries and testes
What are the four phases of the cell cycle?
Interphase, prophase, anaphase, and telephase
Actual genetic information
How the genes are expressed
Multiple genes contribute to the trait
Multiple alleles affect outcome and includes environmental effects
Variants in a particular gene
If both alleles are identical
If alleles are different