A father with type B blood and mother with type A blood have a child. Their child, while in a biology lab at school, tests her blood and discovers she has type O blood. Does she have any concerns about her parentage?A. Yes, because she should have type AB blood if they are her true biological parents.
B. No, because type O blood is possible if her parents both had genotypes AB.
C. No, because both of her parents could be heterozygous.
D. Yes, because both of her parents might be heterozygous.
E. No, because blood types A and B are codominant.

Answers

Answer 1
Answer: C. you can have an A or B blood type but also have recessive genes that could give an O if parent were heterozygous, like if the mother was A-i (i being recessive gene that could give 'O') and the father was B-i then if you do a punnett square then you can see that there's a 25% chance she has i-i or type O blood. 
Answer 2
Answer: C. if the father was B, the mother was A, and the child had O, then the father had to be Bi and the mother had to be Ai

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How are proteins and nucleic acids related?A.) They both provide energy.
B.) They both carry genetic information.
C.) The structure of proteins is determined by nucleic acids.
D.) The subunits of nucleic acids are also the subunits of proteins.

Answers

I believe the correct answer is C.) The structure of proteins is determined by nucleic acids.

Explanation:

To understand this answer, we have to go back to a process called protein synthesis which occurs in the ribosome of a cell. To make the proteins, transcription of DNA to mRNA first occurs in the nucleus. A process called translation then occurs which is just reading the mRNA to understand the message it contains. mRNA is usually single stranded and has bases that code for specific amino acids that build up proteins. Making the mRNA from DNA is the first phase of DNA synthesis called transcription. A strand of mRNA is created and complements the strand of DNA. For Example, if the DNA coding was GAC ACT GAC, the complementary mRNA will be CUG UGA CUG. C complements for G, U complements for A and G complements for C. UAGCT are nitrogenous bases or the nucleic acids found in RNA and DNA. Transcription is divided into initiation where an enzyme called RNA polymerase binds to the promoter region signaling the DNA to unwind to enable the enzyme RNA polymerase to read of the 2 strands that make the DNA. Elongation is the second step where nucleotides are added the strand of mRNA with the complementary bases. Termination is the last step and the mRNA strand that complements the DNA is fully completes so it cuts away from the DNA. Translation of the mRNA then occurs so that a protein can be made. The mRNA leaves the nucleus and enters into the ribosome that reads the codons in the mRNA and molecules of tRNA carry amino acids into the ribosome according to how the codons of mRNA are arranged. In end, when the ribosomes translate to the terminating codon, the process of translation ends and a protein is made with amino acids arranged in the correct sequence.

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Level: High School

Subject: Biology

Topic: The cell

Option (C) The structure of protein isdetermined by nucleic acids is correct answer.

Further Explanation:

The protein is an elongated chain of amino acids that are a necessary part of all living organisms. Protein is the basic structural element of body tissues such as muscles, hair, etc. nucleic acids are macromolecules that store genetic data and modify protein production. Proteins are classified as primary, secondary, tertiary and quaternary proteins according to the types of bonds present in the structure as well as its complexity.

Deoxyribonucleicacid and ribonucleicacid are the nucleic acids composed of nucleotides. The DNA present within the cell's nucleus transcribes itself to make RNA and the RNA translates to make a protein. Carbohydrates are the primary supply of energy within the body. Nucleic acids are nowhere involved in providing energy to the body. The nucleic acids (RNA and DNA) carry the genetic data in an organism. The nucleic acids are made up of nucleotides thymine, adenine, cytosine, uracil, and guanine. Twenty amino acids randomly made up the protein. Some examples of amino acids are alanine, glycine, proline, glutamine, tyrosine, etc. So, the subunits of nucleic acids don't seem to be the subunits of proteins.

Thus, the nucleic acids determine the structure of proteins formed.

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Answer Details:

Grade: High School

Subject: Biology

Chapter: Molecular basis of inheritance.

Keywords:

Nucleotides, adenine, guanine, cytosine, thymine, uracil, amino acids, alanine, glycine, proline, DNA, RNA, central dogma of molecular biology, translation, transcription.

What's the layer of material found at the innermost part of wood?A. Sapwood
B. Cork cambium
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The answer is B. Cork Cambium.

PLEASE HELP!!!!!!!!What are the two stages of photosynthesis represented by B and C in the diagram shown?

Answers

if I had to guess, I would say both are light reactions.

B is representing photosystem 1, while C is representing photosystem 2

I could probably give a more confident answer if there were some labels or a key to describe the symbols given in the diagram. Hope this helps!

Final answer:

The two stages of photosynthesis represented by B and C are the light-dependent reactions and the Calvin cycle. In the light-dependent reactions, light energy is used to produce ATP and NADPH. These energy carriers are then used in the Calvin cycle to convert CO₂ into glucose.

Explanation:

The two stages of photosynthesis represented by B and C in the diagram are the light-dependent reactions and the Calvin cycle.  

In the light-dependent reactions, chlorophyll absorbs light energy and uses it to produce ATP and NADPH. These energy-carrying molecules are then used in the Calvin cycle, which takes place in the stroma. In the Calvin cycle, carbon dioxide is converted into glucose using the energy stored in ATP and NADPH.

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Which of the following best describes the structure of a biological membrane? ? A. two layers of phospholipids (with opposite orientations of the phospholipids in each layer) with each layer covered on the outside with proteins B. a fluid structure in which phospholipids and proteins move freely between sides of the membrane C. a mixture of covalently linked phospholipids and proteins...

Answers

I believe it would be A, due to the fact that biological membranes usually have a phospholipid bilayer that is embedded with proteins.

Final answer:

The structure of a biological membrane consists of a bilayer of phospholipids, housing proteins and cholesterol, with an outward-facing surface adorned with carbohydrate-protein and lipid complexes. The composition allows a fluid movement of proteins within the plane of the membrane, and a selective permeability due to its hydrophobic interior.

Explanation:

The structure of a biological membrane, often referred to as the fluid mosaic model, consists of two layers of phospholipids forming a bilayer. These phospholipids have hydrophilic heads that face outward, one layer exposed to the inside of the cell and the other exposed to the outside. Between these layers, the hydrophobic tails meet, creating a hydrophobic interior.

The proteins are embedded within this phospholipid bilayer and can move freely within the plane of the membrane. Cholesterol is also present in the biological membrane contributing to its fluidity. Some of these proteins also serve to transport materials into or out of the cell.

Also associated with the phospholipid bilayer are carbohydrates attached to some of the proteins and lipids on the membrane's outward-facing surface. These form complexes that function to identify the cell to other cells.

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Living cells use ____ as their main source of energy.

Answers

carbohydrates i think

ATP? Adenosine TriPhosphate