Questions: 1 - Fertilization and Early Development LEARNING OBJECTIVE: Understand the process of fertilization and the earliest human developments. The process of cleavage forms new cells that are called . a.) gastrulas b.) zygotes c.) blastomeres d.) oocytes

1 - Fertilization and Early Development LEARNING OBJECTIVE: Understand the process of fertilization and the earliest human developments. The process of cleavage forms new cells that are called . a.) gastrulas b.) zygotes c.) blastomeres d.) oocytes
Transcript text: 1 - Fertilization and Early Development LEARNING OBJECTIVE: Understand the process of fertilization and the earliest human developments. The process of cleavage forms new cells that are called $\qquad$ . a.) gastrulas b.) zygotes c.) blastomeres d.) oocytes
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Solution

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The answer is the third one (or C): blastomeres.

Explanation for each option: a.) Gastrulas - Incorrect. Gastrulas are formed later in development during the process of gastrulation, not during cleavage. b.) Zygotes - Incorrect. A zygote is the initial cell formed when a sperm cell fertilizes an egg cell. Cleavage occurs after the zygote is formed. c.) Blastomeres - Correct. Blastomeres are the cells that result from the division of the zygote during the process of cleavage. d.) Oocytes - Incorrect. Oocytes are immature egg cells that undergo maturation before fertilization.

Summary: During the process of cleavage, the zygote divides to form new cells called blastomeres.

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