...the zygote. 3. Cleavage partitions the zygote...
...many smaller cells Cleavage follows fertilization. The...
...of the embryo. Cleavage occurs more rapidly...
...four cells. Continued cleavage produces the morula....
...that it restricts cleavage to the animal...
...animal pole: meroblastic cleavage. In animals with...
...the egg: holoblastic cleavage. 4. Gastrulation rearranges...
...mammals. Avian Development. Cleavage is meroblastic, or...
...obvious polarity. Holoblastic cleavage occurs in the...
...reptiles. Relatively slow cleavage produces equal-sized blastomeres....
...determinants and by cleavage pattern. 5. Inductive...

...The zygote undergoes cleavage, a succession mitotic...
...differences center on cleavage pattern, coelom formation,...
...protostomes undergo spiral cleavage, in which planes...
...also show determinate cleavage where the fate...
...deuterostomes undergo radial cleavage in which the...
...in which the cleavage planes are parallel...
...deuterostomes show indeterminate cleavage whereby each cell...

...of character Identifies cleavage factors, which separate...
...Collective Action Social cleavage: division based on...
...ethnicity, etc. Regional cleavage: Prairie movements are...
...Action (cont’d) Ethnic cleavage: Quebec nationalism has...

...development proceeds through cleavage, gastrulation, and organogenesis....
...most animals. During cleavage, cell division creates...
...binding in mammals. Cleavage partitions the zygote...
...cell divisions called cleavage follows fertilization. During...
...enlarge significantly during cleavage. Cleavage simply partitions...
...significantly during cleavage. Cleavage simply partitions the...
...of cells. During cleavage, different regions of...
...vegetal hemisphere. Continued cleavage produces a blastula....
...located, and the cleavage furrow passes all...
...pattern called holoblastic cleavage. Yolk has its...
...pronounced effect on cleavage in the eggs...
...so great that cleavage furrows cannot pass...
...lacking yolk undergoes cleavage. This incomplete division...
...known as meroblastic cleavage. The yolk of...
...with yolk nutrients. Cleavage of a fertilized...
...remains uncleaved. Early cleavage in a bird...
...mass of yolk. Cleavage begins with the...
...primitive gut. After cleavage, the rate of...
...mass of yolk. Cleavage in the chick...
...cytoplasmic contents, and cleavage of the zygote,...
...other reptiles. Early cleavage is relatively slow...
...hours. Relatively slow cleavage produces equal-sized blastomeres....
...the completion of cleavage, the embryo has...
...are involved in cleavage, gastrulation, and organogenesis....
...First, during early cleavage divisions, embryonic cells...
...to blastomeres during cleavage. These cytoplasmic determinants...
...obvious until after cleavage, although recent research...
...where the first cleavage plane will occur....
...determinants and the cleavage pattern. In frogs,...
...frogs, the first cleavage occurs along an...

...The zygote undergoes cleavage, a succession of...
...development center on cleavage pattern, coelom formation,...
...protostomes undergo spiral cleavage, in which the...
...also show determinate cleavage, whereby the developmental...
...deuterostomes undergo radial cleavage, in which the...
...in which the cleavage planes are parallel...
...deuterostomes show indeterminate cleavage, whereby each cell...
...embryo. The indeterminate cleavage of the human...
...twins possible. Indeterminate cleavage also explains the...

...blastodisc. (B) first cleavage (C) Second cleavage...
...cleavage (C) Second cleavage (D) Third cleavage...
...cleavage (D) Third cleavage (E) The fourth...
...(E) The fourth cleavage - central blastomeres...
...(F) The fifth cleavage - central cells...
...(G) The sixth cleavage - all the...
...(H) The eighth cleavage (I) Blastoderm is...
...– 2 hours) Cleavage begins after 45...
...growth. 2-cell (1st cleavage) (45 minutes) Cleavage...
...cleavage) (45 minutes) Cleavage is meroblastic (incomplete)....
...the 4-cell (2nd cleavage) Cleavage is meroblastic,...
...4-cell (2nd cleavage) Cleavage is meroblastic, cells...
...row 8-cell (3rd cleavage) (1 1/4 hour)...
...(1 1/4 hour) Cleavage is meroblastic, cells...
...row 16-cell (4th cleavage) (1 1/2 hour)...
...(1 1/2 hour) Cleavage of outer cells...
...4). 32-cell (5th cleavage) (1 3/4 hour)...
...(1 3/4 hour) Cleavage of non-marginal blastomeres...
...cells. 64-cell (6th cleavage) Horizontal cleavage planes...
...(6th cleavage) Horizontal cleavage planes produce two...
...of 128-cell (7th cleavage) (2 1/4 hour)...
...tiers. 256-cell (8th cleavage) (2 1/2 hours)...
...tiers. 512-cell (9th cleavage) (2 3/4 hours)...
...seen. ~1000-cell (10th cleavage) Yolk syncytial layer...
...11 2008 7 Cleavage begins approximately 45...
...sixtorientation of a cleavage planthat waves of...
...some tissues and Cleavage of the zebrafish...
...first stage of cleavage the zebrafish embryo...
...yolk. With further cleavage and spreading out...
...I. Observations of Cleavage During this laboratory,...
...light.pole will show cleavage. Carefully rotate and...
...Inplane of first cleavage (Fig. 6). Follow...
...Illustration of second cleavage plane. interphase. As...

...do they catalyze cleavage of only those...
...SUGAR ENTERS THE CLEAVAGE SITE. THE GLUTAMINE...
...HYDROGEN TO THE CLEAVAGE PORTION AND THE...