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2 years ago

The haploid number is 60, so that means the diploid number is *

Biology

1 answer:

Brrunno [24]2 years ago

7 0

Answer:

option B- 120

Explanation:

haploid(n) means a complete set of chromosomes, haploids have half number of chromosomes of a diploid(2n) organism. while diploid means two complete set of chromosomes.

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What would be the expected result if a competitive, nonhydrolyzable analog of ATP were applied to the cytoplasmic side of a plas

Yakvenalex [24]

Answer:

The cell interior would experience higher than normal Na+ concentrations and lower than normal K+ concentrations.

Explanation:

The Na/⁺K⁺ pump is an ATPase pump which is responsible for maintaining low Na⁺ and high K⁺ concentrations within the cytoplasm while maintaining high Na⁺ and low K⁺ concentrations in the extracellular fluid.

Since these two ions are moved against their concentration gradient, ATP hydrolysis is required to provide the energy for this process. This is done by moving in two K⁺ ions inside while moving three Na⁺ ions outside the cell for every molecule of ATP hydrolysed to ADP and Pi.

If a competitive non-hydrolyzable analog of ATP is applied on the cytoplasmic side of a plasma membrane that contained a large concentration of the Na/⁺K⁺ pump, it will act by inhibiting the action of the Na/⁺K⁺ pump. This will result in an accumulation of Na⁺ ions inside the cell and lower than normal K⁺ ions concentration.

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2 years ago

What are the major functions of the circulatory system.

gulaghasi [49]

Answer:

The major functions of the circulatory system is it delievers oxygen and nutrients to cells and takes away wastes.

Explanation:

Hope this helps! :)

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1 year ago

What is the function of the phytoplankton in ocean ecosystems?--- A. producer B. consumer C. scavenger D. decomposer

Elodia [21]

The right answer is A. producer.

Phytoplankton are all cyanobacteria and microalgae (microscopic plants) present in surface waters and drifting with the currents. Unknown because invisible to the naked eye, phytoplankton is the lung of our planet. Thanks to photosynthesis, it produces more than half of the Earth's oxygen and consumes half of the carbon dioxide. Phytoplankton is essential for marine life because it is also at the base of the ocean food chain.

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3 years ago

Read 2 more answers

1. Suppose the synthesis of an amino acid was accomplished by four enzymes encoded by four genes that formed an operon. Draw a m

vivado [14]

I have attached lac operon model having 4 genes. See attachment for better understanding.

Answer:

The Lac operon is controlled by two signals.

Initiation

Glucose and lactose concentrations control the initiation of transcription of the Lac operon through their effects on the Lac repressor protein and Cap.

Lactose absent (Repression)

When lactose is absent, the Lac repressor binds the Lac operator and shuts off expression of the operon.

Lactose present (Transcription)

Addition of lactose increases the intracellular concentration of a related compound, allolactose. allolactose binds to the Lac repressor, causing it to undergo a conformational change that releases its grip on the operator DNa.

Glucose absent (Repression)

When glucose is absent, cyclic aMp (red triangle) is produced by the cell and Cap binds to DNA.

Glucose present (Transcription)

LacZ, the first gene of the operon, encodes the enzyme b-galactosidase, which breaks down lactose to galactose and glucose.

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2 years ago

Tsetse flies feed by piercing the skin with their mouthparts and _____.

WINSTONCH [101]

<span>Tsetse flies feed by piercing the skin with their mouthparts and: Sucking the blood of animals and humans. </span>

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2 years ago

Read 2 more answers