Answer:
c. possess a nucleus.
Explanation:
A eukaryotic cell may be unicellular or multicellular. Each cell possesses a well-defined or definite nucleus. Beside nucleus, each eukaryotic cell also has membrane-bound organelles such as mitochondria, chloroplasts, Golgi apparatus, endoplasmic reticulum. Ribosomes, a cell membrane, cytoplasm and DNA are present in all the prokaryotic and eukaryotic cells.
Answer:
Option). 4-5 days.
Explanation:
Morula is a 4-5 days stage of early embryonic development. It represents a solid ball, having 16 cells, known as blastomeres. In human embryo, differentiation begins with morula stage, along with cleavage to form trophoblast (an outer layers of cell) and inner cell mass.
During development, trophoblast forms embryonic part of placenta and inner cell mass form respective structures of embryo.
Thus, the correct answer is option).4-5 days.
Answer:
Day 4-5
Explanation:
The first cell differentiation occurs when the embryo reaches approximately five days after fertilization, forming the blastocyst.
In this case, the cells on the outside undergo the process of differentiation and become responsible for the formation of embryonic attachments (structures that derive from the embryo's germ leaflets but are not part of the embryo's body, such as the amnion).
In the meantime, those cells that remained inside, also undergoing the process of differentiation, become pluripotent stem cells, which are responsible and capable of forming all tissues.
Previously, when they are still undergoing the process of dividing up to 8 cells, each cell is capable of forming a complete being when inserted into an egg.
By going through the whole process and becoming pluripotent stem cells, they can form all kinds of body tissues, butno longer a complete being.
Hypercholesterolemia can be defined as the genetic disorder in which the patient have abnormally high levels of blood cholesterol. The family of Erin suffers from familial hypercholesterolemia, so every member of the family have to take better care of what they eat, and exercise regularly to keep their cholesterol levels in check. All the members of the family are prone to high cholesterol levels as this is a genetic disorder. Erin probably does not pay attention to her diet and exercise and thus, she have such high levels of cholesterol as compared to her family members.
interactions in an ecosystem?
Answer:
So they Can work better and quicker
adenine and guanine
b.
cytosine and guanine
c.
thymine and cytosine
d.
cytosine and adenine
Answer:
The correct answer is B) a substrate will be unable to attach to the enzyme.
Explanation:
The enzyme binds to the substrate binds to proceed with the reaction. Enzyme attached to the active binding site of the substrate and form an enzyme-substrate complex to minimize the threshold of the reaction.
Inhibitor competes with the enzyme for the active binding site. Instead of the enzyme, the inhibitor binds with it and stops the reaction.
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