In an E-R Diagram, A(n)________ on a Line Means That

question 102

Multiple Choice

In an E-R diagram, a(n) ________ on a line means that at least one entity of that type is required.

• A)small oval
• B)vertical bar
• C)arrow
• D)triangular block

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Definitions:

Blastocyst

A structure formed in the early development of mammals, consisting of an inner cell mass and an outer layer of trophoblast cells, which implants into the uterine wall.

Pronuclei

The nuclei of the sperm and egg before they fuse in fertilization, each containing a single set of chromosomes from the respective parent.

Diploid

Normal number of chromosomes (in humans, 46 chromosomes) in somatic cells.

Chromosomes

Long strands of DNA wrapped around proteins, located in the cell nucleus, which carry genetic information.