Meiosis
DNA
Mendel
Diagrams
Make it Real
100
Meiosis takes a _________ (diploid / haploid) germ cell and produces four ___________ (diploid / haploid) gametes.
diploid, haploid
100
Which of the following is not one of the four bases found in DNA?
a. adenine
b. guanine
c. tryptine
d. cytosine
C. tryptine
100
Short noses (S) are dominant to long noses (s). Give the genotype of a homozygous recessive individual.
ss
100
What process is shown in the diagram below?
DNA replication
100
Give one example of a recessive trait in humans.
blue eyes, non tongue-rolling, colorblindness, etc.
200
Synapsis and crossing-over occurs during:
A. anaphase 1
B. metaphase 1
C. prophase 1
D. prophase 2
C. prophase 1
200
______________ is the process of making protein based on an mRNA template.
translation
200
Suppose a brown chicken was crossed with a white chicken and they had brown and white speckled chickens. What phenomenon is demonstrated?
codominance
200
What process is shown in the diagram?
crossing over
200
Geneticists are looking for the parents of a baby with type AB blood. Who are they?
Mary - type O
Brad - type A
George - type B
Jane - type B
Darrel - type O
Brad and Jane
300
A cell with a diploid number of 46 undergoes meiosis.
How many chromosomes are in each daughter cell?
23 chromosomes
300
Transcribe the mRNA strand from the following DNA sequence:
G T A G G C C A T T A T
C A U C C G G U A A U A
300
The gene that causes sickle cell anemia also causes resistance to malaria. What phenomenon is demonstrated?
A. multiple allele inheritance
B. pleiotropy
C. allele frequency
D. polygenic inheritance
B. pleiotropy
300
What phase of meiosis is shown in the diagram?
metaphase 2
300
A colorblind father marries a woman with normal vision who is not a carrier. What are the chances they will have a colorblind son?
0%
400
A diploid organism contains 12 chromosomes.
How many were inherited from each parent?
6 chromosomes
400
A(n) _________ is a sequence of three nucleotides on a tRNA molecule that pairs with three nucleotides on the mRNA molecule.
anticodon
400
In pea plants, purple (P) is dominant to white (p). In a cross between a hybrid pea plant and a homozygous recessive pea plant, what percent of the offspring will be purple?
50 %
400
Identify each type of RNA in the following diagram (not every number will be used):
mRNA, tRNA, rRNA
2 - mRNA
5 - tRNA
3 - rRNA
400
Give one example of how scientists can manipulate an individual's DNA
cross-pollination, breeding, genetic engineering, cloning
500
___________ chromosomes pair during synapsis.
homologous
500
__________ are the ends of chromosomes that shorten with each replication
telomeres
500
How many different genotypes and phenotypes are possible in a dihybrid cross?
16 genotypes
4 phenotypes
500
S = smooth, s = wrinkled
Y = yellow, y = green
Give the phenotype of the bottom right square.
ssyy = wrinkled, green
500
What is the attempt to improve humanity through the control of hereditary factors?
eugenics