Ask question

Ask question

All categories

2 years ago

7

The survival of any species depends on variation among its members. Which of the following prodcues the LEAST variation in a spe

cies?
A) asexual reproduction
B) gene mutations
C) recombination
D) sexual reproduction

1 answer:

Harman [31]2 years ago

4 0

Answer:

asexual reproduction

Explanation:

because every single organism in the species is the exact same genetically, there is no variation between them.

You might be interested in

What are the answers to 3 and 4

konstantin123 [22]

3. is Phytoplankton
4. Plankton produce their own food thru photosynthesis or lassoing energy
Hit me up with the Like Love :)

3 0

2 years ago

Which of the following sequences is correct for the downhill movement of electrons during cellular respiration? A. glucose – cit

Volgvan

Answer:

B. glucose – NADH – electron transport – O2

Explanation:

This is the sequence from glycolysis in which glucose molecules are split down to pyruvate, to oxidative phosphorylation.

During this process the electrons are released from glucose molecule as it is oxidised multiple times as pyruvate, and other molecules formed subsequently in Kreb's cycle, until the oxidative phosphorylation is reached .

The makes the carrier molecules to be reduced.Thus NAD→NADH,FAD→FADH .

The electrons from above are transferred in hydrogen atoms to matrix by these co-enzymes.Where the H is split to electrons and protons.

The electrons for the ETC, produce the PMF for transporting protons into the intramembrane space.

The concentration of protons generated the electrochemical gradients which is needed to produce energy for for phosphorylation of ADP with Pi to form ATP by ATpase synthase.

The electrons moves as chain,and this is finally accepted by oxygen as the final electron acceptor.

3 0

2 years ago

What is the overall purpose of photosynthesis

solniwko [45]

Answer:

To convert solar energy into chemical energy and then store the chemical energy for future use.

Explanation:

6 0

2 years ago

Read 2 more answers

How do you believe that economics (money) and our environment are connected.

eduard

Answer:

Explanation:

Economics our environment are connected in an ongoing cycle we have created. Economics have a special influence on the environment because of the way we have set up our social system. There are many good affects of this cycle, such as people reserving land for endangered species. However, there are also bad affects, such as people monopolizing land just for themselves.

7 0

2 years ago

Not one of the ways that bacteria have adapted to become resistant to antimicrobial agents.

Dominik [7]

Answer:

Explanation:

An antimicrobial agent is a natural or synthetic chemical that kills or inhibits the growth of microorganisms. Bacteria have a mechanism of transferring genomic material called <em>horizontal gene transfer</em><em>, the movement of genes between cells that are not direct descendants of one another</em>. Horizontal gene transfer allows cells to quickly acquire new characteristics and drives metabolic diversity. <u>One of the characteristics usually acquired is the resistance to antibiotics</u>.

Three mechanisms of genetic exchange are known in prokaryotes:

(1) transformation, in which free DNA released from one cell is taken up by another; (2) transduction, in which DNA transfer is mediated by a virus; and (3) conjugation, in which DNA transfer requires cell-to-cell contact and a conjugative plasmid in the donor cell.

Examples of genes transferred by transducing bacteriophages include multiple antibiotic resistance genes among strains of <em>Salmonella enterica </em>serovar <em>Typhimurium</em>, Shiga-like toxin genes in <em>Escherichia coli</em>, virulence factors in <em>Vibrio cholerae</em>, and genes encoding photosynthetic proteins in cyanobacteria.

Conjugative plasmids use a mechanism to transfer copies of themselves and the genes they encode, such as those for antibiotic resistance, to new host cells.

8 0

2 years ago