<h2>Maternal effect</h2>
Explanation:
In maternal effect the phenotype of the progeny is decided by the genotype of the mother
- The female partner is one step ahead to her male partner
- The ovum transcribes some of its nuclear genes prior to fertilization and these genes are responsible for the development of embryo that is why these genes are called maternal effect genes
- This effect is observed in Drosophila
In the given question both male and female have brown eyes with Nn genotype,phenotype of the offspring will be decided by the genotype of mother(Nn) hence despite of having recessive genotype(nn) all the offsprings will show brown eyes
For cells <span>to stay the same size from generation to generation, the two things that must be coordinated are GROWTH and DIVISION. During the normal cell cycle, cells undergo growth as well as cell division. This is done in different processes. Hope this answers your question. </span>
Answer:
Simple organisms, such as theamoeba and earthworm, have a moist, permeable external surface. Oxygencan pass into them through this surface by diffusion. A large surface area is needed for effective gas exchange - so larger, more complex, organisms have special organs such as gills and lungs.
Explanation:
The temperature of the plasma gasses cools. This is because the gases lose some of their energy into light photons that disperse into space. When the plasma gases get cooler gases to become denser and sink to the bottom of the convection zone and are replaced from upwelling hotter plasma gas. The temperature at the bottom of the convection zone is approximately 200,000° C while that at the surface is 5700° C.
Answer:
C. be made of some of the same matter
Explanation:
The human beings living in the present time can be related to the horses that lived thousands of years ago.
This could be due to the fact that resources on the Earth were present in the past had been recycled again and again through the biogeochemical cycles.
This shows that the elements present on the Earth can be reused again and again and the elements which could have composed the horse now form the matter in the humans.
Thus, Option-C is correct.
