Examlex
When increasing output, marginal opportunity costs increase because inputs are not equally productive in all activities.
Diploid
An organism or cell having two complete sets of chromosomes, typically one set from each parent.
Prophase I
The first stage of meiosis I where chromosomes condense, pair up, and exchange genetic material through crossing over, essential for genetic diversity.
Homologous Chromosomes
Pairs of chromosomes in a diploid organism that are similar in size, shape, and gene content, one inherited from each parent.
Sister Chromatids
Sister chromatids are two identical copies of a single replicated chromosome that are connected by a centromere and eventually separated during cell division.
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