Heredity (Unit 1) Flashcards
True or false: Sexual reproduction produces variety in the offspring.
True
Does this describe sexual or asexual reproduction: Includes budding and fragmentation.
Asexual
Does asexual reproduction occur in in simple organisms?
Yes
True or false: Sexual reproduction requires 2 parents.
True
True or false: In sexual reproduction, the offspring are clones of the parent.
False
Which type of reproduction involves little to no parental care?
Asexual
Does asexual reproduction result in many offspring?
Yes
What are the 3 main parts of a nucleotide?
A nitrogenous base, sugar, and phosphate
What are the names of the nitrogenous bases?
Adenine, Thymine, Guanine, Cytosine
What is the structure of DNA called?
A double helix
What make up the sides of the double helix?
Sugar and phosphates
What type of bonds holds DNA bases together?
Hydrogen bonds
True or false: The purpose of DNA replication is to make exact copies of DNA
True
Is it true that inter-phase of meiosis is when DNA replicates?
Yes
How many cells will there be at the end of meiosis?
4
How many cells will there be at the end of mitosis?
2
Will the 4 cells at the end of meiosis be the identical or different?
Different
Will the 2 cells at the end of mitosis be the identical or different?
Identical
If B is dominant for brown eyes over blue eyes, then a person with the allele combination of
1. BB will have ______ eyes
2. Bb will have ______ eyes.
3. bb will have ______ eyes.
- Brown
- Brown
- Blue
How many chromosomes do humans have?
46
Are the following traits “a” acquired, “i” inherited, or “b” both?
1. Speaks Italian
2. Dances well
3. Can taste PTC
4. Is 6’2”
5. Weighs 150 pounds
6. Has 4 cats
7. Has green eyes
- A
- A
- I
- B
- A
- A
- I
If someone has the combination of Mm and has wavy hair, which is the genotype, and which is the phenotype?
Wavy hair: Phenotype
Mm: Genotype
What is the role if DNA helicase in DNA replication?
Brings in nucleotides to rebuild 2 DNA molecules
