Biology, 03.03.2020 02:39, officialrogerfp3gf2s

What accounts for the diversity of cell types and functions in humans relative to simpler animals, despite not having significantly more genes than simpler animals?

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answered: calistaallen1734

Completed Ques.

A. Many human genes can encode multiple proteins.

B. Complexity arises from differential gene expression.

C. Humans gain more genes through horizontal gene transfer.

D. Complexity arises from different combinations of proteins.

A,B,D

Explanation:

A. Many human genes can encode multiple proteins.

The characteristic of DNA and RNA tipple codes to code for a particular protein, and for each of these bases to re-arranged to form a different triplet code , to translate for another protein, makes multiple proteins to be coded for by many genes. (generally the 4 bases(A,TC,G, U) can combine in 64 times to form triplet codes with each coding for a specific protein)This makes varieties of proteins to be synthesized, for different cellular reactions e,g need for hormones, enzymes,and for different biochemical reactions for efficient functioning of the body. A characteristic lacking in simple animals.

B. Complexity arises from differential gene expression.

The complexity of gene expression is due to the fact that the processes of transcription and translation at the onset of gene expression are separated and occurs, after the completion of one another. Each of this stage requires separate enzymes, conditions, processes before they can take place, and different cell organelles to coordinate.Besides the ability of each cells to regulate different levels of gene expression -Epigenetic regulation is additional complexity of the gene expression.

D. Complexity arises from different combinations of proteins.

The ability to produces different combinations of proteins with different physiological and anatomical functions, explains the complexity and diversification in eukaryotes compare to simple animals.

answered: Guest

climate change and pollution

answered: Guest

Schools are being forced to embrace computers. unlike their "digital immigrant" teachers, these students are "digital natives", born into a world where technology is an integral part of everyday life. almost every student has access to a multitude of computers, laptops and tablet devices. it would be crazy to assume an assignment would notbe written on computer in this day and age.many schools now have a 1-to-1 computer policy, and many districts and states in the united states have mandated computers or ipads across the state for every student, including los angeles, the second largest school district in the country.but the thing is, when they tried it in la, it wasn't the success they hoped for. that's because the tablets weren't used as much as they expected. rather, it appeared there was a gap between the digital native's love of technology and their use of it in the classroom.this conflicted relationship with computers is also underscored by much of the literature on education. it is also highlighted in professional development and conferences such as edutech.

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What accounts for the diversity of cell types and functions in humans relative to simpler animals, d...