0
What else can I help you with?
Early rapid cell division without growth?
Cleavage is the process of early rapid cell division in embryonic development without growth in individual cells. During cleavage, the zygote undergoes multiple rounds of cell division, resulting in a multicellular structure known as a morula. These cells are initially small in size and do not increase in overall mass until later stages of development.
What are the parallel lines seen on crystal faces or cleavage planes?
Parallel lines seen on crystal faces or cleavage planes are called growth striations. They are caused by variations in the crystal's growth rate or conditions during formation, resulting in alternating layers of different densities or compositions. These striations can provide valuable information about the crystal's growth history and conditions.
What is a rapid cell division with the absence of growth between divisions?
Cleavage
When does Holoblastic cleavage take place?
Holoblastic cleavage takes place during early embryonic development in animals, typically during the first few cleavage divisions after fertilization. It involves complete division of the egg into individual blastomeres as opposed to partial or incomplete cleavage seen in other types of cleavage.
What point in mitosis does a cleavage furrow form?
During cytokinesis in mitosis a cleavage furrow forms.
Are nearly identical cells that are produced by early cleavages?
Are known as blastomeres. They are formed during the process of cleavage in embryonic development, and are important for the growth and division of the embryo.
Describe the principal events occurring during the cleavage stages of the embryo?
During the cleavage stages, the embryo undergoes rapid cell divisions without an increase in cell size, resulting in the formation of smaller and smaller cells called blastomeres. Each blastomere contains genetic material from the original zygote. Cleavage leads to the formation of a solid ball of cells called a morula, which eventually develops into a hollow ball of cells called a blastocyst.
What is a blastomere?
A blastomere is any cell which results from division of a fertilized egg.
Does the size of the embryo change as cleavage progresses?
No, the size of the embryo remains relatively the same during cleavage as cell divisions occur. Cleavage is the process of rapid cell division without growth, so the overall size of the embryo does not increase significantly.
The series of cellular divisions by which the zygote becomes a multicellular embryo is known as?
The series of cellular divisions by which the zygote becomes a multicellular embryo is known as cleavage. During cleavage, the zygote undergoes multiple rapid divisions without growth in between, leading to the formation of a blastula or blastocyst.
Successive cell divisions convert the zygote into a multicell embryo during?
Successive cell divisions convert the zygote into a multicellular embryo during cleavage. This process involves rapid cell divisions without overall growth of the embryo. Cleavage helps in increasing the number of cells and establishing the basic body plan of the embryo.
Early rapid cell division without growth?
Cleavage is the process of early rapid cell division in embryonic development without growth in individual cells. During cleavage, the zygote undergoes multiple rounds of cell division, resulting in a multicellular structure known as a morula. These cells are initially small in size and do not increase in overall mass until later stages of development.
What are the parallel lines seen on crystal faces or cleavage planes?
Parallel lines seen on crystal faces or cleavage planes are called growth striations. They are caused by variations in the crystal's growth rate or conditions during formation, resulting in alternating layers of different densities or compositions. These striations can provide valuable information about the crystal's growth history and conditions.
What are the six stages of animal development?
The six stages of animal development are fertilization, cleavage, gastrulation, organogenesis, growth, and adulthood. Fertilization occurs when the sperm and egg fuse to form a zygote, which then undergoes cell division during cleavage. Gastrulation involves cell movements that form the three germ layers, leading to organogenesis where organs begin to develop. Finally, growth occurs as the organism matures into adulthood.
What causes a lack of cleavage in some minerals?
A lack of cleavage in minerals can be due to their atomic structure, which may not have planes of weakness along which the mineral can easily break. Alternatively, some minerals may exhibit fracture instead of cleavage, resulting in irregular or jagged surfaces when broken. Other factors such as impurities or deformation during crystal growth can also affect the cleavage of a mineral.
What are the satges of growth and development?
the stages of growth are: gametogenesis fertilization cleavage or segmentation blastulation gastrulation organogenesis
What is a rapid cell division with the absence of growth between divisions?
Cleavage
