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Interactive NAT Grade 10 Reviewer (Science) Part 4

1➤ What are the building blocks of proteins?

2➤ What is the molecule that serves as the “blueprint” of life?

3➤ What are the nitrogenous bases in DNA?

4➤ Which is the correct complement pairing of bases in DNA?

5➤ Which of the following sequences of DNA bases is complementary to the sequence: ATC-GTG-CCC

6➤ What do you call the genetic mutation that causes a codon that should code for a specific amino acid to be changed into a stop codon ?

7➤ A genetic mutation that does not result in a change in the amino acid sequence of the resulting protein is called

8➤ This is a mutation that causes a section of the chromosome to be broken out and reinserted backwards. This is known as

9➤ Persons with Down syndrome usually have ______ copies of chromosome 21.

10➤ If a segment of a chromosome is present several times more than normal due to unequal crossing-over, it is called ________.

11➤ An adaptation promotes ________.

12➤ The criterion used to determine if an organism is a new species is based on ________.

13➤ Where can most fossils be found?

14➤ Vertebrate forelimbs are most likely to be discussed in ________.

15➤ Which of the following statements does NOT describe Darwin's theory of natural selection?

16➤ Which of the following describes mutation?

17➤ What agent of evolutionary change can result to a population with limited variation due entirely to chance?

18➤ What do you call the process that results to the formation of new species because of evolution?

19➤ Who is the first evolutionist to believe that organisms change?

20➤ It is commonly observed in plants and in some kinds of animals and a very good example of non-random mating.

21➤ When a change occurs in the environment, what will organisms do?

22➤ Which of the following is an ecosystem?

23➤ A person breeds rabbits in a cage. After a few generations, the breeder observes that the rabbits are more aggressive towards each other, the young are less healthy and more young rabbits die. What do you think will happen to the population of rabbits?

24➤ What is the significance of species diversity?

25➤ Why are invasive species a threat to biodiversity?

26➤ Which is the adverse effect of high fertility and rapid population growth?

27➤ The statement “250 individuals per square kilometer” most likely refers to _________.

28➤ Which of the following causes a decreasing wildlife population in most of the places in our country?

29➤ Based on the given statements, how will you describe the yearly percentage change of Philippine population growth in the last four years?

I. The current population of Philippines in 2021 is 111,046,913, a 1.34% increase from 2020.

II. The population of Philippines in 2020 was 109,581,078, a 1.35% increase from 2019.

III. The population of Philippines in 2019 was 108,116,615, a 1.37% increase from 2018.

IV. The population of Philippines in 2018 was 106,651,394, a 1.41% increase from 2017.

30➤ A limiting factor is an environmental condition that restricts the growth distribution of a population within an ecosystem. Which of the following limiting factors would increase due to the number of individuals in a population?

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