Forwarded from 🅑🅡🅐🅘🅝 🅑🅐🅣🅣🅛🅔
When considering primate evolution, which species shares a more recent common ancestor with humans?
Anonymous Quiz
6%
A. Gorillas
88%
B. Chimpanzees
0%
C. Spider monkey
6%
D. Colobus monkeys
Forwarded from 🅑🅡🅐🅘🅝 🅑🅐🅣🅣🅛🅔
Which percentage of the body's total energy expenditure does the human brain typically account for?
Anonymous Quiz
6%
A. 5%
12%
B. 10%
59%
C. 25%
24%
D. 50%
Forwarded from 🅑🅡🅐🅘🅝 🅑🅐🅣🅣🅛🅔
What factor contributes to the low likelihood of human races evolving into different species?
Anonymous Quiz
20%
A. Reproductive isolation mechanisms
10%
B. Increased gene flow between populations
30%
C. Reduced genetic variation within racial groups
40%
D. Changes in climate or other environmental factors
Forwarded from 🅑🅡🅐🅘🅝 🅑🅐🅣🅣🅛🅔
What is the result of a missense mutation?
Anonymous Quiz
14%
A. The DNA sequence is shortened
14%
B. A stop codon is inserted into the sequence
14%
C. No change occurs in the protein sequence
57%
D. A different amino acid is incorporated into the protein
Forwarded from 🅑🅡🅐🅘🅝 🅑🅐🅣🅣🅛🅔
Which type of mutation involves the addition or deletion of nucleotides in a DNA sequence,causing a shift in the reading frame?
Anonymous Quiz
30%
A. Point mutation
10%
B. Silent mutation
20%
C. Missense mutation
40%
D. Frameshift mutation
Forwarded from 🅑🅡🅐🅘🅝 🅑🅐🅣🅣🅛🅔
Which of the following conditions is NOT caused by aneuploidy?
Anonymous Quiz
10%
A. Turner syndrome
80%
B. Sickle cell anemia
10%
C. Klinefelter syndrome
0%
D. Edwards syndrome
Forwarded from 🅑🅡🅐🅘🅝 🅑🅐🅣🅣🅛🅔
What is the chromosome number typically associated with Turner syndrome?
Anonymous Quiz
20%
A. 45, XO
20%
B. 46, XY
47%
C. 48, XXX
13%
D. 47, XY
Forwarded from 🅑🅡🅐🅘🅝 🅑🅐🅣🅣🅛🅔
What is genetic drift?
Anonymous Quiz
18%
A. A state in which allele frequencies in a population remain constant.
9%
B. A process where alleles are intentionally altered by external factors.
18%
C. A situation in a population where one allele becomes the only existing variant.
55%
D. A mechanism of evolution driven by random fluctuations in allele frequencies.
Forwarded from 🅑🅡🅐🅘🅝 🅑🅐🅣🅣🅛🅔
What occurs during fixation in genetic drift?
Anonymous Quiz
23%
A. Genetic equilibrium is reached
23%
B. Allele frequencies become stable
38%
C. Alleles are lost from the population
15%
D. The frequency of one allele reaches 100%
Forwarded from 🅑🅡🅐🅘🅝 🅑🅐🅣🅣🅛🅔
If the frequency of individuals with the genotype AA is 0.36 in a population that is inHardy-Weinberg equilibrium, what is the frequency of individuals with the genotype Aa?
Anonymous Quiz
22%
A. 0.6
22%
B. 0.24
22%
C. 0.48
33%
D. 0.12
Forwarded from 🅑🅡🅐🅘🅝 🅑🅐🅣🅣🅛🅔
How does gene flow impact allele frequencies within populations?
Anonymous Quiz
29%
A. It increases the frequency of recessive genetic disorders.
0%
B. It causes the complete disappearance of a species from Earth.
50%
C. It introduces new alleles and alters existing allele frequencies.
21%
D. It makes small group of individuals to establish a new population.
In which part of your body can you easily detect your pulse rate?
Anonymous Quiz
25%
Elbow
33%
Wrist
33%
Chest
8%
Stomach
Oxygenated blood leaves the human heart through the
Anonymous Quiz
40%
Pulmonary vein
20%
Pulmonary artery
13%
Vena cava
27%
Aorta
Meiosis is a type of cell division that takes place in:
Anonymous Quiz
75%
Germ cells
13%
Somatic ce
6%
Nerve cells
6%
Muscle cells
Which of the following animals is found in Nechisar National park ?
Anonymous Quiz
25%
Mountain nyala
33%
Crocodile
8%
Walia ibex
33%
Gelada baboon
Which of the following plants is endemic to Ethiopia ?
Anonymous Quiz
8%
Olive
8%
Blue gum
15%
Maize
69%
Niger seed
At which stage of meiotic cell division does the spindle form &crossing over takes place?
Anonymous Quiz
27%
Telophase I
9%
Metaphase I
45%
Anaphase I
18%
Prophase I
Which of the following chemicals causes the depletion of ozone layer in atmosphere?
Anonymous Quiz
57%
Chlorofluorocarbons
21%
Sulphur dioxide
7%
Carbon monoxide
14%
Carbon dioxide
Plants adapted to desert areas have:
Anonymous Quiz
31%
Curled leaves
23%
Many stomata
31%
Large fleshy leaves
15%
Thin Cuticle