TRAITS
When one allele is not completely dominant over another, this is an example of
Incomplete dominance
What would Hershey and Chase have concluded if both radioactive phosphorous and sulfur were found in the bacteria in their experiment?
The virus’s protein coat was not injected into the bacteria.
What do bacteriophages infect?
Bacteria
What structural problem prevents adenine from pairing with guanine?
Both are purines, or double-ring structure
DNA replication is carried out by a series of _____________.
steps
What is the probability that a cross between parents who are both homozygous recessive for trait will have offspring that are homozygous recessive for that trait?
100%
What did Avery conclude caused transformation?
DNA
In which cells is the accurate transmission of information most important?
Gametes
What unzips the DNA strands?
DNA polymerase
DNA replication results in two DNA molecules...
Each with one new strand and one original
If a pea plant’s alleles for height are tt, what is true of its parents?
Both Parents carry a recessive t allele
Would Hershey and Chase have concluded if both radioactive phosphorus and sulfur were found in the bacteria in the Hershey-Chase experiment?
Both DNA and protein are injected and combine as genetic material
How many different allele combinations would be found in the gametes produced by a pea plant whose genotype was RrYY?
2
In eukaryotes, where is DNA...
It is located in the nucleus
Due to the process of segregation, alleles separate during the production of ________
gametes
A cross of a black chicken (BB) with a white chicken (WW) produces all speckled off spring (BW). This type of inheritance is known as…
Incompete dominance
The Hershey-Chase experiment worked because bacteriophages have phosphorus in which component?
DNA had a phosphorus core
Chromatin contains proteins called _____________.
chrotien
What binds to the prokaryotic chromosome to start DNA replication?
Rugalitory proteins
Chromosomes form tetrads during...
Prophase I
The reddish-brown pigment that gives color to a fruit-fly’s eye is controlled by three genes, so a fruit fly’s eye color is a ___________.
Polygenic trait
Which scientist made x-ray diffraction photos of DNA?
watson
The tips of chromosomes are known as ________________.
telomeros
___________ are weak bonds that hold the two strands of DNA together, but also allow the DNA to separate and replicate.
Covalent bonds
What is formed at the end of meiosis?
4 Haploid cells