Describe the formation of a zygote. How many pairsof chromosomes are in a zygote, and where do thechromosomes within a pair come from?
Describe the formation of a zygote. How many pairsof chromosomes are in a zygote, and where do thechromosomes within a pair come from?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
Describe the formation of a zygote. How many pairs
of chromosomes are in a zygote, and where do the
chromosomes within a pair come from?
Expert Solution
Step 1
A zygote is the fertilized cell that will develop into a new animal or plant. When a female's ovum and a male's sperm cell fuse, the cell that outcomes are named the zygote.
Step 2
The zygote formed when the male gamete and female gamete fertilize. Blastocyst stage: The single-celled zygote begins to split up into a solid ball of cells. Then, it becomes a hollow ball of cells called a blastocyst, connecting to the lining of the mother's uterus. The zygote then multiplies and develop into an embryo.
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