1.What does DNA stand for?
a. Deoxyribonucleic acid
b. Detoxyribonucleic acid
c. Deoxyribonuclein acid
d. Detoxyribonuclein acid
2. What are the components of a DNA molecule?
a. Ribose sugar, phosphate
b. Deoxyribose sugar, phosphate
c. Ribose sugar, phosphate and nitrogenous base
d. Deoxyribose sugar, phosphate and nitrogenous base
3. Which among the following BEST describes a gene?
a. A gene is an alternative form of an allele.
b. A gene has four types; adenine, thymine, cytosine and guanine.
c. A gene is known as the blueprint of life consisting of a series of nucleotides.
d. A gene is a functional unit of heredity and a segment of DNA located in the chromosome.
4. What do you call the specific structure in the chromosome where genes are located/found?
a. P arm
b. Gene locus
c. Q arm
d. Centromere
5. Which among the following statements does NOT describe the importance of DNA?
a. DNA can be used in solving cases like paternity and even crimes.
b. DNA is important in the understanding of mutation and how traits are inherited.
c. DNA serves as the blueprint of life, providing necessary data needed for the existence of life.
d. DNA is a double stranded helically coiled chains of nucleotides which is located in the chromosomes.
6.Which among the following statements BEST describes incomplete dominance?
a. It involves a cross where the gender of an individual is determined.
b. It states that there is masking of the dominant trait over the recessive trait.
c. It is a form of inheritance where one allele is not completely dominant over the other.
d. It is a type of inheritance where both traits of a given allele are expressed in a heterozygote.
.
7.Which among the following situations show codominance?
a. A cross between X and Y chromosomes gives rise to XY.
b. A cross between red cattle and white cattle resulted in roan cattle.
c. A cross between long radish and short radish gives rise an oblong radish.
d. A cross between a red and a white Four o’clock flower gives rise to pink flowers.
8 A mother has blood type O while the father has blood type B. What could be possible blood types of their children?
a. B only
b. O only
c. B and/or O
d. neither B nor O
9. What could the sex of an organism if an egg cell is fertilized by a sperm cell carrying Y chromosome?
a. male
b. male or female
c. female
d. cannot be determined
10. Which among the following statements does NOT describe the importance of codominance?
a. Codominance promotes variation among organisms.
b. Codominance maintains the purity of the breed of organisms.
c. Codominance produces offspring of the same characteristics with that of the parents.
d. Codominance promotes extinction among organisms for it introduces invasive species.
11.When can a female person become hemophiliac?
a. When both her parents are hemophiliac.
b. When both her parents are carriers of hemophilia.
c. When her father is normal and her mother is a hemophiliac.
d. When her father is a hemophiliac and her mother is normal.
12. Which among the following traits is an example of a sex-influenced trait?
a. Baldness
b. Hemophilia
c. Colorblindness
d. Hypertrichosis
13 A normal female but a carrier of colorblindness marries a man with a normal color vision. What is the probability that any of their children will become colorblind?
a. 0%
b. 25%
c. 50%
d. 75%
14. Which among the following conditions of parents will have a child that is hemophiliac?
a. When both her parents are hemophiliac.
b. When both her parents are normal (not hemophiliac).
c. When her father is normal and her mother is hemophiliac.
d. When her father is hemophiliac and her mother is normal (not hemophiliac).
15. Which among the following statements does NOT show respect to people with an undesirable inheritable trait such as hypertrichosis and baldness?
a. Treat them nicely.
b. Don’t laugh at these people but rather show respect.
c. Treat them normally, the way you treat other people.
d. Post their pictures in social media and create a video about them so that people will see their undesirable traits.
paki sagutan po please kailangan kona:(
Share
Answer:
1t
2h
3a
4n
5k
6y
7o
8u
9s
10a
11p
12o
13i
14n
15t