A man (A) suffering from defective tooth enamel, which results in brown-colored teeth, marries a normal woman. All their daughters have brown teeth, but the sons are normal. The sons of man A marry normal women, and all of their children are normal. The daughters of man A marry normal men, and 50 percent of their children have brown teeth. Fully explain these facts.

Q: hy is nutrition contribute to the healthy development of a toddler

A:

Q: Both the husband and wife have normal vision. The wife gives birthto a color-blind daughter. Is it…

A: DNA ( deoxyribonucleic acid) is the genetic material that the organism inherits from the parental…

Q: Given that the function of egg yolk is to nourish and supportthe developing chick, explain why egg…

A: Yolk is a very important part of the egg. It is stored in yolk sac.

Q: How could a child inherit a disease that neither parent has?

A: In Mendel experiment F1 heterozygote Tt to be exactly like the parent in appearance. Because one…

Q: The mesoderm gives rise to   a. structures derived from epidermis, such as hair, feathers, nails,…

A: The process called gastrulation is the most characteristic event occurring during the third (3rd)…

Q: Which of the following disorders is not caused by a single gene defect? a. Diabetes b. Clediocranial…

A: *Diabetes is a chronic disease that occurs when pancreas does not produce enough insulin a harmone…

Q: Dentinogenesis imperfecta is a rare, autosomal, dominantly inherited disease of the teeth which…

A: Dentinogenesis imperfecta can affect both primary teeth and permanent teeth.

Q: Why do mammalian eggs have a small concentration of yolk, while bird and reptile eggs have a large…

A: Eggs are divided into three types on the basis of the amount of cytoplasm present in them. They are…

Q: What issues do you think may happen with our immune systems and the production of the next…

A: The concept  that pregnancy is associated with immune suppression has created a myth of pregnancy as…

Q: The yolk sac is connected to the embryonic _____ by way of the vitelline duct. a. liver bud d.…

A: The yolk sac is connected to the embryonic _____ by way of the vitelline duct.

Q: Explain the origin and maturation of each type of formedelement

A: The formed elements refer to the cells suspended in the plasma. The formed elements are erythrocytes…

Q: in horses, a classic champagne colored horse and an amber champagned colored horse produce a golden…

A: Introduction :- The horse is a domesticated, hoofed mammal with unusual toes. It is one of the two…

Q: An example of  a rare genetic disorder in which a person lacks enough blood-clotting proteins caused…

A: These all are genetic diseases .  1 Baldness : Excessive hair loss from the scalp. Hereditary hair…

Q: Why is breast feeding in the first 3month of a baby very important? (200 words)

A: Milk synthesis in mother is related to infant demands. If the milk is removed from the breasts, it…

Q: A man has a straight hairline. Is it necessary for both his parents to also have straight hairlines…

A: The widow peak is a dominant trait over straight hair line.  Let W encodes Widow peak. And W allele…

Q: The trait of the ear lobe shape is recessive. This statement is

A: Ear lobe size and appearance are also inherited characteristics.

Q: Explain why growth of the blastomeres cannot take place  during cleavage?

A: Development in biology occurs to ensure the formation of multicellular organisms from the single…

Q: Suggest foods that would be beneficial for infant stage you  and explain why.

A: It’s never too early to introduce healthy, nutritious foods to your baby’s diet, and vegetables and…

Q: Fill in the blank:  When a primary oocyte divides, a secondary oocyte and a(an)…

A: Oogenesis is a growth process in which the primary egg cell  becomes a mature ovum. The oogenesis…

Q: Why is brown fat important?a. It is the newborn’s primary source of insulation.b. It can be broken…

A: Brown fat also called as good fat is type of fat in body. It has many small lipid droplets, and high…

Q: State the significance of mother’s milk to a new-born infant.

A: Mother's milk is produced by the special glands called as mammary glands and these are present in…

Q: In humans, having dimpled cheeks is dominant to non-dimpled cheeks. Isit possible that two dimpled…

A: As dimpled cheeks are dominant,the genotypes are DD and Dd. As the non-dimpled cheeks are…

Q: Which of the following statements about gastrulation is correct? A. During gastrulation, the…

A: The embryonic development after 15 days of fertilization marks gastrulation.

Q: Lactose intolerance is a disorder caused from the inability to digest the sugar lactose. It is not…

A: Lactose intolerance is an inability to digest the lactose, a sugar present in the milk and other…

Q: Identify the protein available in eggs and explain the significance or importance of such protein in…

A: Proteins are made up of amino acids. Amino acids are linked by peptide bonds, this simple structure…

Q: why an increased level of FSH raises the likelihood of fraternal twins.

A: Sperm and egg (ova) are male and female gametes respectively. Fertilization is the process of fusion…

Q: may I ask how you get 12-65 of the leptin's size?

A: Leptin is a protein (hormone) of size 16 kDa (167 amino acids) which is released from the fat cells…

Q: how nutrients are exchanged from the mother to fetus during pregnancy

A: As a common needs food for growth, development to stay being healthy a fetus also needs nutrients…

Q: What blood types are not expected for children to have if their parents have AB blood? O blood?

A: Given: Parents have blood group AB blood.   Using Punnett Square we can find out the expected…

Q: In 2 paragraphs, explain why early childhood is an important stage in human growth

A: Early childhood development serves as a building block for overall development of a child. Early…

Q: All of the following are benefits of breast feeding EX a) The baby will receive complex…

A: In infants below 6 months of age, it's advised that breastfeeding is to be followed. Breastfeeding…

Q: A person will be lactose intolerant only if he or she inherits two lactose persistence alleles from…

A: Genetic traits are regulated by genes.

Q: Homer Simpson goes to the hospital to run some tests. The doctors there ask him what his blood type…

A: The antigens on the erythrocyte surface are important determinants for the transfusion of blood. The…

Q: Explain why Caucasians have rosy cheeks?

A: Caucasian is a racial classification, which is obsolete now and is disapproved. However, this term…

Q: Hutchinson-Gilford syndrome, is an extremely rare, progressive genetic disorder that causes children…

A: Mutations in the LMNA gene cause Hutchinson-Gilford progeria syndrome. Here, we have to select the…

Q: The trait of the ear lobe shape is recessive. This statement is..

A: Free earlobes are the ones that curve up from the bottom of the earlobe to the point at which the…

Q: Two human parents with dimples have children and they all do not have dimples. What are the…

A: A dominant trait is an inherited feature that occurs in an offspring when a dominant allele is…

Q: . If your father were diagnosed with an inherited disease that develops around the age of 50, would…

A: Genetic diseases are inherited from one generation to the next.  They are health problems that are…

Q: Explain what protein we isolated from milk, and how we were able to achieve this. Explain what…

A: Milk is one of the most nutritional food found in nature. Milk is composed of vitamin, minerals,…

Q: The trait of possessing dimples is a trait. recessive dominant

A: Dimples is a dominant trait.

Q: Familial hypercholesterolemia is a genetic condition that prevents the tissues from removing…

A: Familial hypercholesterolemia is the main example for incomplete dominance. There is a generation of…

Q: A man with type AB blood marries a woman with type A blood. Her mother has type O blood. What…

A: Genes are the specific codes of these amino acids which produces a protein and alleles is the…

Q: why is it important that the gametocytes is unique from the other?

A: Introduction : During gametogenesis, eukaryotic germ cells called gametocytes undergo mitosis to…

Q: What do you mean by diapedesis?

A: The blood cells make up about 45% of the blood composition and the rest of the 55% of the blood is…

Communication

Communication is a method of transferring information between two persons or organisms. Communication is possible using mutually understood behaviors such as signs, symbols, or language. In the year 1980, S. F. Scudder proposed communication theory. According to his ideas, all living beings on the earth communicate, but the methods of communication differ. Communication skills are now part of soft skills.