BIOLOGY HIGH SCHOOL

If two gray [Gg] mice mated, what percent of their offspring would have pure white fur?

Answers

Answer 1
Answer: 25% of their offspring will have pure white fur
Answer 2
Answer:        G     g
G    GG Gg
g     Gg   gg

25% would have pure white fur.

Related Questions

Trace the path of an egg cell by filling in the blanks. After the egg breaks through the ovarian wall, it travels into the _____, which overlies each ovary. From there, it reaches the _____, or womb. If the egg is fertilized by a sperm cell, it is implanted in the _____. uterus; ovary; fallopian tube ovary; fallopian tube; uterus fallopian tube; uterus; endometrium endometrium; uterus; fallopian tube
What form of RNA carries instructions from the nucleus to the ribosome?
How would you draw a pyramid of numbers for a dog with fleas? What shape would the pyramid take?
What is produced as a result of mitosis?A. Two cells, each containing half the number of chromosomes of the original cellB. Two cells, each containing the same number of chromosomes as the original cellC. Four cells, each containing the same number of chromosomes as the original cellD. Four cells, each containing half the number of chromosomes of the original cell
Polymerization and the break down of a polymer are two opposite reactions. What role does a water molecule play in both of them?

Describe the basic structures of protozoa. Can these same structures be seen in bacteria using a light microscope?

Answers

The basic structures of Protozoa include the following

  • Locomotoryorgans such as Flagella for movement
  • Pellicle which their bodies are covered with
  • A well defined nucleus
  • Contractile vacuole for those who live in freshwater.

Protozoa is an eukaryote because its nucleus is well defined due to the

presence of nuclear membrane . It is also referred to as a unicellular

organism.

The basic structures of a protozoa can be seen under a light microscope

and a common example is Amoeba.

Read more about Protozoa here

the basic structure or a protozoa is a unicellular eukaryote that has a relatively complicated internal strucuture and are meant to carry out complex metabolic activities. Some protozoa also have structures for propulsion or other types of movements. and yes they can be seen under light microscope

Match the following carbohydrate molecules with the class of molecule that they belong to:Molecules: (I) Glucose; (II) Starch; (III) Sucrose


Classes:

A) Polysaccharides
B) Disaccharides
C) Monosaccharides

Answers


(I) Glucose; is C
(II) Starch; A
(III) Sucrose B

A) Polysaccharides
B) Disaccharides
C) Monosaccharides

Monosaccharide, disaccharides, and polysaccharides are the three major categories of molecules in Carbohydrates. 

Monosaccharides, known as simple sugar, is the simplest form of carbohydrates. Its basic molecular formula is CH2O. Monosaccharides are glucose, fructose, and galactose. Its primary function is to be the source of energy of living organisms. It is also the primary requirement for the formation of disaccharides and polysaccharides.

Disaccharides are formed when two monosaccharides are bonded together through a covalent bond. Common Dissaccharides are sucrose  (glucose+fructose) or table sugar, maltose (glucose+glucose), and lactose (glucose+galactose). Its primary function is to provide nutrition for monosaccharides. Sugar in food is mostly dissaccharides.

Polysaccharides are formed when another monosaccharides is bonded to the disaccharides. This bond is called glycosidic bond. Two major polysaccharides are starch and glycogen. Starch is made by plants while glycogen is made by animals. Polysaccharides' major function is to immediately release energy from its storage. When glucose is consumed, some of them are stored and will only be released when the body needs it to satisfy the body's immediate need of energy.

Final answer:

Glucose is a Monosaccharide, Starch is a Polysaccharide, and Sucrose is a Disaccharide. Monosaccharides are simple sugars, Disaccharides are two sugar molecules, and Polysaccharides are complex carbohydrates.

Explanation:

The carbohydrate molecules belong to the following classes:

  • (I) Glucose belongs to the class of Monosaccharides.
  • (II) Starch belongs to the class of Polysaccharides.
  • (III) Sucrose belongs to the class of Disaccharides.

To explain, Monosaccharides are the simplest form of carbohydrates, such as glucose. Disaccharides are two monosaccharide molecules linked together, in this case, sucrose is composed of glucose and fructose. Polysaccharides are complex carbohydrates, made of many sugar units - starch is one such example.

Learn more about Carbohydrate Classification here:

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What is one difference between DNA and RNA?A) Only DNA contains the base adenine.
B) Only RNA contains the base guanine.
C) Only RNA contains the sugar fructose.
D) Only DNA contains the sugar deoxyribose.

Answers

The one difference is D) DNA contains the sugar deoxyribose

Many ranchers prefer cattle without horns. Thepresence or absence of horns is genetically determined.
The allele for the absence of horns (A) is dominant to
the allele for the presence of horns (a).

A male with horns is mated with a heterozygous female
without horns. What percentage of the offspring would
be expected to have horns? (1 point)

A. 25%

B. 50%

C. 75%

D. 100%

Answers

Well, that is 50%. Just do all 4 cases and you find that in 2 of them you get horns.
50%. You would set up a punnett square and find that the female would pass the dominant allele to 2 of 4 offspring.

Which statement accurately describes how identification of individuals through the use of genetic engineering is possible?     A. The DNA in mitochondria is passed from mother to child in the nucleus of a cell.
B. The Y chromosome doesn't experience crossing-over.
C. The mitochondria DNA in a mother and her offspring vary greatly.
D. The X chromosome can only be passed from a father to his son.

Answers

The identification of an individual by the means of genetic engineering is possible because the Y chromosomes in the males does not experience any crossing-over as there is only a single Y chromosome present in a human male.

The mitochondrial DNA is passed from the mother to child in the cytoplasm of the cell, and it is passed on without any changes. The X chromosome is can be passed from a mother to her son as he will receive Y chromosome from his father.

Hence, the correct answer is 'Option B - The Y chromosome does not experience crossing over'.
A. The DNA in mitochondria is passed from mother to child in the nucleus of a cell.

A benefit of genetic engineering is the production of valuable proteins that have helped in managing of illness in human beings. Bacteria were genetically engineered to produce proteins of medical importance. One example of such a protein is human insulin which is given the name humulin and is made using E. coli bacteria.Earlier,  insulin from pig cells was used to treat patients with diabetes but many of them could not tolerate it because it has a slightly different arrangement of amino acids from that of humans and so the human body rejects it. Humulin is tolerated by the human body and so many patients are now using it to lead normal lives.

Sponges reproducea. sexually in a way favoring cross-fertilization.
b. sexually in a way favoring self-fertilization.
c. asexually with sperm only.
d. none of the above

Answers

It's both with and without sperm
Other Questions
During cellular respiration, the bonds of food molecules are broken, so energy can be released to fuel other cellular processes. In order for this to occur, which of the following statements must be true?A.) The energy in the new compounds that are formed must be equal to the energy in the bonds of the food molecules.B.) New compounds with lower-energy bonds must be formed when the high-energy bonds in food molecules are broken.C.) New compounds with higher-energy bonds must be formed when the low-energy bonds in food molecules are broken.D.) The new compounds that are formed must be more complex than the food molecules that were broken down.
Ex.1 Which of the following statements regarding mutation rates is correct? a) Mutation rates are independent of gene size. b) Mutation rates for all genes of an organism are approximately the same. c) Mutation rates are independent of exposure to external agents such as UV radiation. d) Average mutation rates vary among taxonomic groups. Practice Problem 64 The amino acid changes noted in Parts A-C are the result of changes in DNA sequence. For each of these amino acid changes, evaluate whether a single base change in the given codons could account for the change in the amino acid. Part A For which codon(s) could a single base change account for this amino acid change? Lysine to Asparagine Select all that apply. UUU AAG AAA none of these codons Part B For which codon(s) could a single base change account for this amino acid change? Alanine to Phenylalanine Select all that apply. GCG GCU GCC GCA none of these codons Part C For which codon(s) could a single base change account for this amino acid change? Leucine to Glutamine Select all that apply. CUC UUG UUA CUG CUU CUA none of these codons
Explain how the sun produces energy which is transferred to the earth by radiation
What do scientists need to look at before developing an argument