Developmental Biology: Embryology Introduction

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What is the branch of science that is devoted to understanding how plants and animals arise from single cells?

Developmental biology

What is the term for the process where male and female gametes fuse to form a fertilized egg?

Fertilization

In which region of the embryo do cells divide more slowly due to the presence of yolk?

Vegetal hemisphere

What is the name given to the ball or sheet of similar cells formed during cleavage divisions?

<p>Blastula</p> Signup and view all the answers

What is the term for the process where cells divide rapidly and involve no growth, resulting in daughter cells half the size of the mother cell?

<p>Cleavage</p> Signup and view all the answers

What is the process that converts the original cell mass into a three-layered structure?

<p>Gastrulation</p> Signup and view all the answers

Which layer gives rise to the outer layer of the body's organs?

<p>Ectoderm</p> Signup and view all the answers

What process is responsible for the formation of extraembryonic structures for support and nutrition?

<p>Gastrulation</p> Signup and view all the answers

Which science studies the effects of environmental agents on embryos?

<p>Teratology</p> Signup and view all the answers

What is the process involving the formation of gametes in sexual reproduction?

<p>Gametogenesis</p> Signup and view all the answers

What is the name given to the liquid-filled cavity in the center of the ball-shaped blastocyst?

<p>Blastocoel</p> Signup and view all the answers

Which region of the embryo contains the most yolk and results in slower cell division?

<p>Vegetal hemisphere</p> Signup and view all the answers

What term refers to the branch of science devoted to understanding how plants and animals arise from single cells?

<p>Developmental biology</p> Signup and view all the answers

Which process involves the conversion of a single cell, the fertilized egg, into a complex organism consisting of many anatomical parts?

<p>Embryonic development</p> Signup and view all the answers

During which process do male and female gametes fuse to form a fertilized egg?

<p>Fertilization</p> Signup and view all the answers

What is the name given to the process that converts the original cell mass into a three-layered structure?

<p>Gastrulation</p> Signup and view all the answers

Which type of cells are formed from germ cells in the embryo?

<p>Germ line cells</p> Signup and view all the answers

What is the significance of the germ line in sexual reproduction?

<p>It contains the genetic information for the future organism</p> Signup and view all the answers

Which process involves the formation of haploid (1n) chromosome set from germ cells in the embryo?

<p>Gametogenesis</p> Signup and view all the answers

What is the developmental process that follows gastrulation and involves the formation of body organs?

<p>Organogenesis</p> Signup and view all the answers

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