Ll Flashcards
(25 cards)
What are the main topics covered in Quarter 3?
- Albinism
- Genetics
- Punnett Squares
- Pedigree Charts
- DNA & DNA Replication
- RNA & Protein Synthesis
What is the correct pairing of nitrogenous bases in DNA?
A pairs with T and G pairs with C
What type of bond is formed between a metal and nonmetal?
Ionic bond
What type of bonds are made in the four bases that make up DNA?
Covalent bond
What elements make up the nitrogenous bases in DNA and RNA?
C, H, O, N, P
What is the genotype for a normal person who does not exhibit albinism?
AA
What is the probability of having an albino child if one parent is heterozygous and the other has albinism?
25%
What are the genotypes of the parents if only 25% of the offspring are albino?
Aa & Aa
What is the genotype for a person who exhibits albinism?
aa
Which probability model shows probability in offspring for two traits?
Dihybrid cross
Which Mendelian Law refers to the inheritance of traits independently?
Law of Independent Assortment
Can two homozygous individuals with albinism have a child without the trait?
No, both parents will pass on the recessive trait to ALL their offspring.
Which probability model shows probability in offspring for one trait?
Monohybrid cross
Which blood types carry the recessive O allele?
A and B
Could a Blood Type A with the recessive O and a person with Blood Type O have a child with Blood Type O?
Yes, there would be a 50% probability
Which Mendelian Law refers to the alleles of each parent separating during gamete formation?
Law of Segregation
What do circles and squares represent in Pedigree Charts?
Females are represented by circles, Males are represented by squares
How many individuals have hemophilia in the pedigree chart?
1 female and 3 males
What is the genotype of the youngest sisters in generation III?
XᴴXʰ
What is the phenotype of most males in the family except those with XʰY?
A. Normal
How many generations are there in this family?
3
What is a key structural difference between DNA and RNA?
DNA contains the sugar deoxyribose, while RNA contains the sugar ribose.
What enzymes are responsible for unwinding and adding nitrogen base pairs during DNA replication?
A. Unwinding (DNA Helicase) and B. Adding Base pair (DNA Polymerase)
What is the primary function of DNA in a cell?
To store and transmit genetic information.
