genetics and evolution Flashcards
how many chromosomes does a sperm cell contain?
23 chromosomes
how many chromosomes does an egg cell contain?
23 chromosomes
what is a zygote?
when a sperm cell collided with an egg.
what is a chromosome?
a tightly coiled strand of DNA
what does DNA stand for?
deoxyribonucleic-acid
what is the difference between an acquired trait vs an inherited trait.
an inherited trait is passed down through genetics whereas an acquired trait is developed by an individual.
what is a nucleotide?
the building blocks of DNA (adenine, guanine, thymine, cytosine).
what is DNA?
found in the nucleus of the cell; the carrier of genetic information.
what is the structure of a DNA molecule?
a double helix structure.
what is a gene?
a segment of DNA
what is a genome?
an organisms entire set of DNA.
