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Nady [450]
3 years ago
13

Which of the following is a density independent factor

Biology
2 answers:
Ilia_Sergeevich [38]3 years ago
6 0
The answer is A:Lack of rainfall. The others have nothing to do with density. Happy halloween!
Allisa [31]3 years ago
4 0

Answer:

A:Lack of rainfall

Explanation:

In Ecology, certain factors affect the population of species in an ecosystem. These limiting factors can either be density dependent or density independent. Based on the question, density independent limiting factors are those factors that affect population size of species irrespective of their density in an ecosystem.

The effect of density independent factors is not dependent on the size of the population, so it tends to affect process limit all populations in the ecosystem. Density independent factors are usually environmental-related e.g natural disasters, lack of rainfall as mentioned in the options.

Lack of rainfall in a particular ecosystem will affect all population species irrespective of how dense they are. Hence, it is a density independent limiting factor.

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The cpt® code reported for the reprogramming is 92604, which is Subsequent reprogramming. Current Procedural Terminology (cpt) is a medical code set that is used to report medical, surgical, and diagnostic procedures and services to entities such as physicians, health insurance companies and accreditation organizations.

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You experimentally change the DNA sequence directly upstream of a start codon of an operon in E coli to investigate the function
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Answer:

Mutation occurred in ribosome binding site that serves as binding site for 30S ribosomal subunit of <em>E. coli</em> and allows the process of protein synthesis to begin.

Explanation:

The initiation of protein synthesis in bacteria requires binding of the ribosome to the ribosome binding site. The ribosome binding site in bacteria consists of the initiation codon "AUG" and the preceding Shine-Dalgarno sequence. The AUG initiation codon and Shine Delgrano sequence are around 10 bases apart.

The sequence is polypurine hexamer and is represented by 5' ...AGGAGG...3'. Shine-Delgrano sequence is complementary to the conserved sequence present at the 3' end of 16SrRNA of the 30S subunit of the bacterial ribosome. Binding of Shine Delgrano sequence of ribosome binding site and the complementary sequence of the 30S ribosomal subunit marks the first step in the initiation of protein synthesis.

Any mutation in the ribosome binding site would not allow the process of protein synthesis to start or would reduce the rate of the initiation of protein synthesis.

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A dominant mutation in Drosophila called Delta causes changes in wing morphology in Delta/+ heterozygots. Homozygosity for this
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<h3>What is Gestation ?</h3>

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<h3>What is peripartum period ?</h3>

The time just prior to, during, and soon following childbirth.

Everyone agrees that the postpartum period starts when the baby is born. Although the end is less well defined, it is sometimes thought to occur six to eight weeks after delivery because by then the effects of pregnancy on many systems have essentially gone back to their pre-pregnancy states.

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