Mendelian Genetics
A recessive trait will be observed in individuals that are ________ for that trait.
What is homozygous?
Human traits, such as eye color, skin color, weight, & height, that are due to expression of many genes are considered to be the result of:
What is polygenetic inheritance?
In DNA replication, two strands of DNA are produced, one is a parent strand and one is a new daughter strand; this is called ____________ replication.
What is semi-conservative?
The organelle location of both DNA replication and transcription in eukaryotic cells.
What is the nucleus?
These two scientists are attributed with the discovery of DNA.
Who are Cricks and Watson?
In a dihybrid cross of individuals who are heterozygous for both traits, _____ is the expect phenotypic ratio.
What is 9:3:3:1?
Labrador retrievers’ fur color is controlled by two alleles, E and B. Any dog with the ee genotype develops into a yellow lab, while B_E_ dogs become black labs and bbE dogs become chocolate labs. This is an example of _____.
What is epistasis?
This holds the two strands of a DNA molecule together in a helical shape.
What are hydrogen bonds?
This organelle is where translation occurs within the eukaryotic cell.
What is the ribosome?
This scientist worked with the alga Acetabularia and determined that the nucleus contained the specific traits of the alga.
Who is Joachim Hammerling?
If you have two alleles, T and t, in a diploid germ cell, they will separate during meiosis and will be present in
different gametes – this is an example of Mendel’s Law of _____________.
What is the Law of Segregation?
If black and white true-breeding mice are mated and the result is all gray offspring, ____ explains this inheritance pattern.
What is incomplete dominance?
If DNA of a particular species was analyzed and it was found that it contains 27 percent A, ____ would be the percentage of C.
What is 23%?
The specific organic molecules synthesized during transcription are called ______________________.
These scientists continued the transformation of pneumonia-causing bacteria in the 1940’s and they determined that it was DNA that could transform a harmless strain of bacteria to become virulent?
Who are Oswald Avery & Maclyn McCarty?
Purple (PP, Pp) or white flowers (pp) – flower color is a(n) _________ while P_ or pp is the ____________.
What are phenotype and genotype?
The genotype XXY corresponds to this condition.
What is Klinefelter syndrome?
If the sequence of the 5'-3' strand is AATGCTAC, then the complementary sequence has the following sequence:
What is 3'-TTACGATG-5'"?
DNA replication occurs in this direction.
What is 5'-3'?
These two scientists proposed what is now called the Chromosomal Theory of Inheritance.
Who are Sutton and Boveri?
Two parents, Malik and Tysheka, have an arch on their feet but are carriers for flat feet (Ff). _____is the probability that they have a child that has flat feet and what is the probability they have a child with a normal arch.
What is 75%/25%
If the allele encoding polydactyly (six fingers) is dominant, explain why most people have five fingers.
What is polydactylism is rare in human populations?
DNA runs antiparallel with a _____ and ______ strands. _______ are created by the discontinuous strand; whereas continuous replication occurs on the _ to _ strand
What are leading/lagging/Okazaki fragments/ 5-to-3?
The enzyme responsible for unwinding DNA during replication?
What is helicase?
This scientist conducted the x-ray diffraction research used to determine the helical structure of DNA.
Who is Rosalind Franklin?
Who is Maurice Wilkins?