Two forces 40N and 30N are acting on an object.what is the resultant force when they are in opposite direction?
Anonymous Quiz
74%
10N
23%
70N
3%
86N
1%
15N
BIO 2017 G12 UNIT 2 WORKSHEET.pdf
4.9 MB
ODA SBS BIO 2017 G12 UNIT 2 WORKSHEET
MATH WORKSHEET G12 UNIT 1&2 G11 UNIT 1&2.pdf
4.2 MB
ODA SBS MATH WORKSHEET G12 UNIT 1&2 G11 UNIT 1&2
ODA SBS GRADE 12 2017 AGRICULTURE WORKSHEET.pdf
66.9 KB
ODA SBS GRADE 12 2017 AGRICULTURE WORKSHEET
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Which of the following cell is used to break down bones and help them to form into correct shapes?
Anonymous Quiz
28%
Osteoblasts
27%
Osteocytes
35%
Osteoclasts
10%
Osteoprogenitor
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Which one of the following is an example of irregular bone?
Anonymous Quiz
33%
Vertebrae
24%
Cranium
29%
Carpus
14%
Sternum
20 multiple-choice questions about genetics from grade 10 unit 2 and grade 11 unit 4
1. What is the basic unit of heredity?
a) Gene
b) Chromosome
c) DNA
d) Protein
2. Which process makes mRNA from DNA?
a) Translation
b) Transcription
c) Replication
d) Mutation
3. Which process makes proteins from mRNA?
a) Translation
b) Transcription
c) Replication
d) Mutation
4. Where does transcription occur in eukaryotes?
a) Cytoplasm
b) Nucleus
c) Ribosomes
d) Golgi apparatus
5. What are different versions of a gene called?
a) Genotypes
b) Phenotypes
c) Alleles
d) Chromosomes
6. What is an organism's genetic makeup?
a) Phenotype
b) Genotype
c) Karyotype
d) Allele
7. What are an organism's observable traits?
a) Genotype
b) Phenotype
c) Karyotype
d) Allele
8. What shows the possible genotypes of offspring?
a) Pedigree chart
b) Karyotype
c) Punnett Square
d) DNA sequencing
9. What inheritance involves multiple genes affecting one trait?
a) Monohybrid
b) Dihybrid
c) Polygenic
d) Pleiotropic
10. What inheritance involves one gene affecting multiple traits?
a) Monohybrid
b) Dihybrid
c) Polygenic
d) Pleiotropic
11. What is incomplete dominance?
a) One allele completely masks another.
b) Neither allele is completely dominant.
c) Both alleles are fully expressed.
d) One allele is lethal.
12. What is codominance?
a) One allele completely masks another.
b) Neither allele is completely dominant.
c) Both alleles are fully expressed.
d) One allele is lethal.
13. A change in DNA sequence is called a...
a) Transcription
b) Translation
c) Mutation
d) Replication
14. A single nucleotide change is a...
a) Frameshift mutation
b) Point mutation
c) Chromosomal mutation
d) Silent mutation
15. Insertion or deletion not a multiple of three causes...
a) Point mutation
b) Silent mutation
c) Frameshift mutation
d) Chromosomal mutation
16. What is a picture of an organism's chromosomes?
a) Genotype
b) Phenotype
c) Karyotype
d) Pedigree
17. What is the diploid number of human chromosomes?
a) 23
b) 46
c) 22
d) 44
18. Manipulating an organism's genes is called...
a) Cloning
b) Genetic engineering
c) Gene therapy
d) Selective breeding
19. What technique amplifies DNA?
a) Gel electrophoresis
b) PCR
c) DNA sequencing
d) Cloning
20. What carries genetic information from DNA to ribosomes?
a) tRNA
b) rRNA
c) mRNA
d) snRNA
Answer Key: 1:a, 2:b, 3:a, 4:b, 5:c, 6:b, 7:b, 8:c, 9:c, 10:d, 11:b, 12:c, 13:c, 14:b, 15:c, 16:c, 17:b, 18:b, 19:b, 20:c
1. What is the basic unit of heredity?
a) Gene
b) Chromosome
c) DNA
d) Protein
2. Which process makes mRNA from DNA?
a) Translation
b) Transcription
c) Replication
d) Mutation
3. Which process makes proteins from mRNA?
a) Translation
b) Transcription
c) Replication
d) Mutation
4. Where does transcription occur in eukaryotes?
a) Cytoplasm
b) Nucleus
c) Ribosomes
d) Golgi apparatus
5. What are different versions of a gene called?
a) Genotypes
b) Phenotypes
c) Alleles
d) Chromosomes
6. What is an organism's genetic makeup?
a) Phenotype
b) Genotype
c) Karyotype
d) Allele
7. What are an organism's observable traits?
a) Genotype
b) Phenotype
c) Karyotype
d) Allele
8. What shows the possible genotypes of offspring?
a) Pedigree chart
b) Karyotype
c) Punnett Square
d) DNA sequencing
9. What inheritance involves multiple genes affecting one trait?
a) Monohybrid
b) Dihybrid
c) Polygenic
d) Pleiotropic
10. What inheritance involves one gene affecting multiple traits?
a) Monohybrid
b) Dihybrid
c) Polygenic
d) Pleiotropic
11. What is incomplete dominance?
a) One allele completely masks another.
b) Neither allele is completely dominant.
c) Both alleles are fully expressed.
d) One allele is lethal.
12. What is codominance?
a) One allele completely masks another.
b) Neither allele is completely dominant.
c) Both alleles are fully expressed.
d) One allele is lethal.
13. A change in DNA sequence is called a...
a) Transcription
b) Translation
c) Mutation
d) Replication
14. A single nucleotide change is a...
a) Frameshift mutation
b) Point mutation
c) Chromosomal mutation
d) Silent mutation
15. Insertion or deletion not a multiple of three causes...
a) Point mutation
b) Silent mutation
c) Frameshift mutation
d) Chromosomal mutation
16. What is a picture of an organism's chromosomes?
a) Genotype
b) Phenotype
c) Karyotype
d) Pedigree
17. What is the diploid number of human chromosomes?
a) 23
b) 46
c) 22
d) 44
18. Manipulating an organism's genes is called...
a) Cloning
b) Genetic engineering
c) Gene therapy
d) Selective breeding
19. What technique amplifies DNA?
a) Gel electrophoresis
b) PCR
c) DNA sequencing
d) Cloning
20. What carries genetic information from DNA to ribosomes?
a) tRNA
b) rRNA
c) mRNA
d) snRNA
Answer Key: 1:a, 2:b, 3:a, 4:b, 5:c, 6:b, 7:b, 8:c, 9:c, 10:d, 11:b, 12:c, 13:c, 14:b, 15:c, 16:c, 17:b, 18:b, 19:b, 20:c
❤2
Physics ,,, Motion in a straight line Q&A
### 1. What is the definition of rectilinear motion?
A) Motion in a circular path
B) Motion along a straight line
C) Motion with varying velocity
D) Motion along a curved path
Answer: B) Motion along a straight line
---
### 2. An object is in motion if:
A) It remains at rest
B) It changes position relative to a reference point
C) It moves in a circular path
D) Its speed remains constant
Answer: B) It changes position relative to a reference point
---
### 3. Which of the following is a scalar quantity?
A) Displacement
B) Velocity
C) Distance
D) Acceleration
Answer: C) Distance
---
### 4. Displacement refers to:
A) The total path length travelled by a body
B) The change in position of a body in a certain direction
C) The speed of an object
D) The average velocity of an object
Answer: B) The change in position of a body in a certain direction
---
### 5. How can the speed of an object be calculated?
A) Distance divided by time
B) Displacement divided by time
C) Velocity multiplied by time
D) Acceleration multiplied by time
Answer: A) Distance divided by time
---
### 6. Which of the following is true about velocity?
A) Velocity is always the same as speed
B) Velocity is a scalar quantity
C) Velocity includes both speed and direction
D) Velocity cannot be zero
Answer: C) Velocity includes both speed and direction
---
### 7. The average velocity is:
A) Displacement divided by time
B) Distance divided by time
C) Speed at a specific instant
D) Zero for uniform motion
Answer: A) Displacement divided by time
---
### 8. When is the average velocity the same as instantaneous velocity?
A) When the object is accelerating
B) When the object is in uniform motion
C) When the object changes direction
D) When the object is at rest
Answer: B) When the object is in uniform motion
---
### 9. Which of the following is true about acceleration?
A) Acceleration occurs only when an object speeds up
B) Acceleration can also occur when an object slows down
C) Acceleration does not depend on the direction of motion
D) Acceleration is not related to a change in velocity
Answer: B) Acceleration can also occur when an object slows down
---
### 10. Uniform motion refers to:
A) Motion with varying speed
B) Motion along a curved path
C) Motion along a straight line with constant velocity
D) Motion where the object is at rest
Answer: C) Motion along a straight line with constant velocity
---
### 11. The slope of a position-versus-time graph represents:
A) Acceleration
B) Instantaneous velocity
C) Distance
D) Average velocity
Answer: B) Instantaneous velocity
---
### 12. What is true about instantaneous velocity and average velocity if the velocity is constant?
A) Instantaneous velocity is always greater than average velocity
B) Instantaneous velocity is less than average velocity
C) Instantaneous velocity equals average velocity
D) Instantaneous velocity cannot be determined
Answer: C) Instantaneous velocity equals average velocity
---
### 13. Which of the following quantities is a vector?
A) Distance
B) Speed
C) Displacement
D) Time
Answer: C) Displacement
---
### 14. If an object moves with constant speed, what can be said about its velocity?
A) It is constantly changing
B) It has zero acceleration
C) Its displacement is zero
D) It is non-uniform
Answer: B) It has zero acceleration
---
### 15. What is the change in the position of a body called?
A) Distance
B) Displacement
C) Speed
D) Acceleration
Answer: B) Displacement
### 1. What is the definition of rectilinear motion?
A) Motion in a circular path
B) Motion along a straight line
C) Motion with varying velocity
D) Motion along a curved path
Answer: B) Motion along a straight line
---
### 2. An object is in motion if:
A) It remains at rest
B) It changes position relative to a reference point
C) It moves in a circular path
D) Its speed remains constant
Answer: B) It changes position relative to a reference point
---
### 3. Which of the following is a scalar quantity?
A) Displacement
B) Velocity
C) Distance
D) Acceleration
Answer: C) Distance
---
### 4. Displacement refers to:
A) The total path length travelled by a body
B) The change in position of a body in a certain direction
C) The speed of an object
D) The average velocity of an object
Answer: B) The change in position of a body in a certain direction
---
### 5. How can the speed of an object be calculated?
A) Distance divided by time
B) Displacement divided by time
C) Velocity multiplied by time
D) Acceleration multiplied by time
Answer: A) Distance divided by time
---
### 6. Which of the following is true about velocity?
A) Velocity is always the same as speed
B) Velocity is a scalar quantity
C) Velocity includes both speed and direction
D) Velocity cannot be zero
Answer: C) Velocity includes both speed and direction
---
### 7. The average velocity is:
A) Displacement divided by time
B) Distance divided by time
C) Speed at a specific instant
D) Zero for uniform motion
Answer: A) Displacement divided by time
---
### 8. When is the average velocity the same as instantaneous velocity?
A) When the object is accelerating
B) When the object is in uniform motion
C) When the object changes direction
D) When the object is at rest
Answer: B) When the object is in uniform motion
---
### 9. Which of the following is true about acceleration?
A) Acceleration occurs only when an object speeds up
B) Acceleration can also occur when an object slows down
C) Acceleration does not depend on the direction of motion
D) Acceleration is not related to a change in velocity
Answer: B) Acceleration can also occur when an object slows down
---
### 10. Uniform motion refers to:
A) Motion with varying speed
B) Motion along a curved path
C) Motion along a straight line with constant velocity
D) Motion where the object is at rest
Answer: C) Motion along a straight line with constant velocity
---
### 11. The slope of a position-versus-time graph represents:
A) Acceleration
B) Instantaneous velocity
C) Distance
D) Average velocity
Answer: B) Instantaneous velocity
---
### 12. What is true about instantaneous velocity and average velocity if the velocity is constant?
A) Instantaneous velocity is always greater than average velocity
B) Instantaneous velocity is less than average velocity
C) Instantaneous velocity equals average velocity
D) Instantaneous velocity cannot be determined
Answer: C) Instantaneous velocity equals average velocity
---
### 13. Which of the following quantities is a vector?
A) Distance
B) Speed
C) Displacement
D) Time
Answer: C) Displacement
---
### 14. If an object moves with constant speed, what can be said about its velocity?
A) It is constantly changing
B) It has zero acceleration
C) Its displacement is zero
D) It is non-uniform
Answer: B) It has zero acceleration
---
### 15. What is the change in the position of a body called?
A) Distance
B) Displacement
C) Speed
D) Acceleration
Answer: B) Displacement
👍6❤3
Which of the following is the correct construction of the sex chromosome of normal women?
Anonymous Quiz
21%
XY
72%
XX
5%
X
2%
XXY
❤7🥰1
In cell division, what is the phase that comes following to metaphase called?
Anonymous Quiz
8%
Extra phase
18%
Telophase
67%
Anaphase
8%
Prophase
🥰1
In a dihybrid self-crossing of a plant with genotype DdCc, 3600 offspring were produced. How many of the offspring will have the ddcc genotype?
Anonymous Quiz
19%
150
44%
225
19%
300
18%
450
🥰1
What is the image of the point P(4, 5) under the translation vector T(1, 5)?
Anonymous Quiz
35%
(3, 0)
23%
(-3, 0)
41%
(5, 10)
1%
(-5, 10)
🥰1
What is the reflection of the point P(2, 3) over the y-axis?
Anonymous Quiz
47%
(-2, 3)
23%
(-2, -3)
19%
(2, -3)
10%
(3, 2)
🥰1
The translation T takes from origin to the point P(1, 1), then what is the image of the point P(1, 3) under the translation T?
Anonymous Quiz
13%
(0, -2)
28%
(0, 2)
52%
(2, 4)
7%
(0, 4)
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If the translation T takes the point P(-1, 3) to the point Q(4, 2), then what is the image of the line L: y= 2x - 3 under the translation T?
Anonymous Quiz
42%
y = 2x - 14
26%
5y + x = 1
26%
y = 3x + 7
7%
4y + 5x = 10
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What is the image of the point P(1, -2) after it has been reflected in the line y = 2x?
Anonymous Quiz
31%
(√3/2, -1/2)
31%
(1, 0)
26%
(-11/5, -2/5)
12%
(-16/5, √3)
❤2🥰1
What is the image of the point P (-1, 5) when reflected about the line L: y = x + 2?
Anonymous Quiz
34%
(3, 1)
32%
(3, 5)
24%
(-1, -7)
10%
(-3, 1)
🥰1
What is the image of the point P (4, 5) over y = -x?
Anonymous Quiz
24%
(4, -5)
33%
(-4, 5)
4%
(5, 4)
39%
(-5, -4)
🥰1
What is the image of the point P (5, 6) over y = x?
Anonymous Quiz
57%
(6, 5)
20%
(-6, -5)
11%
(-5, 6)
12%
(5, -6)
🥰1