When the Zygote Consists of About 100 Cells and Looks

question 124

Multiple Choice

When the zygote consists of about 100 cells and looks like a hollow ball, it is called a(n)

• A) fertilized egg.
• B) embryo.
• C) fetus.
• D) blastocyst.

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Definitions:

mRNA

Messenger RNA (mRNA) is a type of RNA that carries genetic information from DNA to the ribosome, where it serves as a template for protein synthesis.

tRNA

Transfer RNA, a form of RNA that carries amino acids to the ribosome during protein synthesis in accordance with the codons of mRNA.

DNA Template

A strand of DNA that serves as a guide for the synthesis of complementary RNA or DNA molecules.

Peroxisomes

Small, membrane-bound organelles present in the cytoplasm of almost all eukaryotic cells, involved in the catabolism of very long chain fatty acids, branched chain fatty acids, D-amino acids, and the reduction of reactive oxygen species - specifically hydrogen peroxide.