7.P3.1
DNA
DNA
A Segment of DNA is called a:
What is a Gene?
A Change in the DNA is called a __________.
What is a Mutation?
Write out a homozygous recessive genotype using the letter M.
What is, mm?
What is an atom?
List two signs of a Physical Change?
What are:
Substances retain individual properties.
Genes determine traits by coding or:
What are Proteins?
What is Protein?
Write a heterozygous genotype using the letter M.
What is Mm?
A group of two or more atoms chemically bonded together is called a....
What is a Molecule?
List two signs of a chemical change:
What is
Cannot be reversed
A (Adenine)
T (Thymine)
C (Cytosine)
G (Guanine)
In humans, the protein CFTR regulates the components of sweat, digestive fluids, and mucus. A human can have a normal form of the gene or a mutated form. Which of the following would provide evidence that the mutated form of the CFTR protein is harmful to humans?
A. Individuals who inherit the mutated form of the gene usually develop serious health problems.
B. Most illnesses have symptoms that are associated with sweat, digestive fluids, and mucus.
C.Both the normal form and the mutated form of the CFTR gene can be found in healthy humans.
What is A?
Write a homozygous dominant genotype using the letter M.
What is the difference between a compound molecule and an elemental molecule?
What is a compound molecule =two or more DIFFERENT elements v an elemental molecule = two or more SAME elements bonded together chemically.
True or False: The molecules involved in a chemical reaction are changed to new substances.
Phenotype refers to ____________ ___________.
Use numbers to explain your answers.
Light moths decrease from 10,000 to less than 500
while Dark moths increase from nearly 0 to 9,000 by the end of 1975.
The trait for Freckles (F) is dominant.
A heterozygous father mates with a homozygous recessive mother.
What is the likelihood that their offspring will have freckles?
What is 50% will have the Genotype Ff.
What is the difference between a Compound molecule and a heterogeneous mixture?
What is a compound molecule is two or more DIFFERENT atoms chemically bonded whereas a heterogeneous mixture is two or more different substances in the same place but NOT chemcially bonded.
The law of conservation of mass states that matter cannot be ____________ or _____________.
What is created or destroyed?
Dominant Alleles are represented by a __________ letter, while recessive alleles are represented by a _____________ letter.
Dominant- Capital
Recessive- Lowercase
According to Graph 1 (Part II), which of the following statements explains the changes seen in the frequency of a mutation in a group of people over several generations?
The student says the answer is B Why are they incorrect?
B. The mutation immediately spread to the entire population because it is a harmful mutation.
Organisms with harmful mutations are less likely to survive and pass on their traits.
The trait for Cystic Fibrosis is recessive.
What are the odds that a carrier (heterozygous) father and a mother with Cystic Fibrosis will have a child with the disease?
What is 50% of offspring will have Cystic Fibrosis?
C6H12O6 is an example of this type of molecule.
What is the definition of a pure substance?
What is a substance made up of only a single type of atom or molecule?