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2 years ago

Hey, can someone help me with three questions in biology? Thanks.

Biology

1 answer:

34kurt2 years ago

3 0

yes someone help me with three questions in biology? Thanks.

How many CO2 molecules are produced when three glucose molecules undergo cellular respiration?(1 point)

A. 6

B. 3

C. 18

D. 12

Suppose cellular respiration occurs inside an insulated, sealed container. How does the container’s weight change during the reaction?(1 point)

A. fluctuates

B. increases

C. decreases

D. stays the same

How would a 3D model of glucose differ from the formula model?(1 point)

A. A 3D model shows how the different atoms are arranged, but the formula model does not.

B. A 3D model shows the number of each type of atom, but the formula model does not

C. A formula model shows size of the glucose molecule, but the 3D model does not.

D. A formula model shows which atoms are larger but the 3D model does not.

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Explain how a testcross can provide evidence for or against linkage.

MrRa [10]

Answer:

Testcrosses clarify linkage because each phenotypic class of progeny corresponds to each gamete type produced by the dihybrid parent.

Explanation:

A test cross involves the crossing of an individual with another phenotypically recessive individual so as to determine the zygosity of the former by analyses of the proportions of offspring phenotypes.
In order to determine linkage, the test cross shows that if the parentals are more than the recombinants, we can say that the two genes such as b and c are genetically linked and therefore, they must be on the same chromosome.
Also, the test-crosses help to find out which alleles came from which parent.
By setting up testcrosses in which one parent is homozygous for the recessive alleles of both genes,we can analyze the gene combinations received in the gametes from the other, doubly heterozygous parent.

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3 years ago

The length of human pregnancies from conception to birth varies

stich3 [128]

Answer:

it would be 9 mounths

Explanation:

7 0

2 years ago

Read 2 more answers

Glycolysis, the Krebs cycle, and the electron transport chain produce about 36 ----- molecules from one molecule of glucose. Ten

suter [353]

Answer:

ATP,NAD+,FAD,CO2

Explanation:

Glycolysis ,the krebs cycle and the electron transport chain produce about 36 ATP molecules from one molecule of glucose.Ten NAD+ molecules and two FAD molecules are reduced to transport H+ ions and electrons to the electron transport chain.Six molecules of CO2 are produced and released from the body as a waste product.

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2 years ago

Which of the following is an example of overproduction in the marine environment?

Ilya [14]

Genetic variation or coral spawning

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3 years ago

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You have a dish of mammalian cells in culture that are all about to enter mitosis (it is a synchronously replicating culture of

mihalych1998 [28]

Answer:

Option-A

Explanation:

RhoA is a protein which belongs to the Rho GTPase family proteins and related Ras superfamily. The Rho A protein is involved in the cell division before the cytokinesis as they are involved in the formation of cytokinesis structures like the actin-myosin rings and the contractile ring formation.

In the given question, if the drug inhibits the activity of RhoA, therefore, cytokinesis will be affected and the cell will complete all the stages of Mitosis except cytokinesis. The cells will be mostly observed in the telophase as cytokinesis will take place after that.

Thus, Option-A is correct.

6 0

3 years ago