If Tom Harris had type AB blood and Mary had type O, could the type O child they brought home be their child? * No, the baby would have to have inherited a gene for O from both parents and Tom has only a gene for A or B. Yes, both parents had the recessive hidden gene for O blood in their genotype which they passed on to the baby. No; the baby would have to have Type AB blood that it inherited from the father since A and B are dominate to O. Yes; the baby inherited type O blood from the mother Mary Harris which is dominant to the genes for both A and B.

Answers

Answer 1
Answer:

The study of blood is called hematology. The component of blood is RBC, WBC, platelets, and plasma.

The correct answer to the question is option B.

What is a blood group?

  • A blood type is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells.
  • These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system.

The genes A and B are dominant over O therefore the O blood group can not be seen in offspring.

Hence, the correct answer to the question is option B is Yes, both parents had the recessive hidden gene for O blood in their genotype which they passed on to the baby. No; the baby would have to have Type AB blood that it inherited from the father since A and B are dominant to O.

For more information about the blood group, refer to the link:-

brainly.com/question/787658

Answer 2
Answer:

Explanation:

No, the baby would have to have inherited a gene for O from both parents and Tom has only a gene for A or B.


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Which describes an atom that has fewer neutrons than protons and more electrons than protons? negative compound positive compound positive ion negative ion

Answers

When an atom has fewer neutrons than protons and more electrons than protons, such an atom is said to be an anion. Hence, it is negative ion.

Depending on the number of proton and electron, there are 3 types of atoms:

  • Neutral atoms in which the proton and electron numbers are balanced
  • Cation in which the proton number is more than the electron number
  • Anion in which the electron number is more than the proton number

In this case, the atom has more electrons than protons and, therefore, is an anion. The excessive electron makes such atom to be negatively charge.

Therefore, an atom that has fewer neutrons than protons and more electronsthan protons is a negative ion.

More on charged atoms can be found here: brainly.com/question/9264485

Answer:

Negatively charged ion

Explanation:

Negatively charged ions are called anions and they have more electron than than protons and more protons than nuetrons.

Which of the following is the functional unit of a myofibril? a. sarcomere
b. myofilament
c. sarcolemma
d. endomysium

Answers

Answer:

Sarcomere

Explanation:

Myofibril is the unit of the muscle cell. The myofibril is rod like in structure and developed by the process of myogenesis in embryo.

Sarcomere is the basic structural unit of the skeletal muscles and shows striations under the microscope. Sarcomere consists of thick and thin filaments of actin and myosin. Different bands like A- band , H-Band, I-Band and Z- line is visible in the sarcomere.

Thus, the correct answer is option (A).

As a ribosome translocates along an mRNA molecule by one codon, which of the following occurs? a. The polypeptide enters the E site. b. The tRNA that was in the A site departs from the ribosome via a tunnel. c. The tRNA that was in the P site moves into the A site. d. The tRNA that was in the A site moves to the E site and is released. e. The tRNA that was in the A site moves into the P site.

Answers

Answer:

e. The tRNA that was in the A site moves into the P site.

Explanation:

Translation comprises 3 steps :

1) Translation initiation

2) Translation elongation

3) Translation termination

Translocation step is a part of translation elongation step which is followed by the peptidyl transferase activity of ribosome. Due to the peptidyl transferase activity of ribosome, the N terminal of newly entered amino acid (amino acid attached with tRNA i.e. aminoacyl tRNA or charged tRNA) at 'A site' attacks the C terminus of amino acid which is already present in the 'P site' of complex and amide bond is formed between amino acids leading to elongation of peptide chain. Then after, the uncharged tRNA which is present in the 'P site' is expelled out the complex via 'E site' while the tRNA that was in 'A site' moves into the 'P site'.

Why does water move through a membrane?

Answers

Answer:

The cells need water to maintain their metabolic functions, the way water enters through cells membranes is by osmosis.

Explanation:

The cell membrane is a lipidic bilayer composed of phospholipids and embedded proteins. Phospholipids have the characteristic of being amphiphilic which means that possess hydrophilic and lipophilic characteristics. The most common way is by osmosis, that is a mechanism that moves water from high concentration to less concentration of water.  In the cell membrane, there are is channels of proteins called aquaporins that facilitate the pass of water through the membrane. Also, as water is a very small molecule without charge, this characteristic allows passing a limit amount of water molecules through the hydrophilic characteristic of membranes.

Oh, no... you dropped your study flashcards, and now they're out of order! Put them back into the correct order for a eukaryotic cell. a. "Combine the mRNA strand with a ribosome and a tRNA carrying a methionine." b. "Unwind the DNA molecule near the promoter." c. "Exit the nucleus to the cytoplasm." d. "Transcribe the complementary RNA strand."

Answers

Answer:

The correct order would be:

b. "Unwind the DNA molecule near the promoter."

d. "Transcribe the complementary RNA strand."

c. "Exit the nucleus to the cytoplasm."

a. "Combine the mRNA strand with a ribosome and a tRNA carrying a methionine."

The given order is according to the central dogma of a cell. According to central dogma DNA is first transcribed into mRNA which is then moved out of nucleus (in eukaryotic cells).

For transcription, the DNA is unwind near the promoter region where transcription factors and RNA polymerase binds the template strand. It then make mRNA which is moved out of the nucleus.

The mRNA then is translated with the help of ribosome and tRNA. The start codon in mRNA usually codes for methionine due to which tRNA carrying methionine recognises the start codon and initiate the process of translation.

What are the monomers of the following biomolecules:A. Carbohydrate
B. Lipid
C. Protein
D. Nucleic Acid

Answers

Answer:

Carbohydrates - monosaccharides

Lipids - fatty acids, glycerol

Protein - amino acids

Nucleic acid - nucleotides

Answer: Carbohydrates: molecules composed of sugar monomers. They are necessary for energy storage. ...

Lipids: water-insoluble molecules that can be classified as fats , phospholipids, waxes, and steroids. ...

Proteins: biomolecules capable of forming complex structures. ...

Nucleic Acids: molecules consisting of nucleotide monomers linked together to form polynucleotide chains. ...

Explanation: I hope this helps.