Lesson 1

Question 1

Three models proposed to describe the genetic mechanism of how cells duplicate their genetic material

Answer 1

Conservative
Semiconservative
Dispersive

Question 2

It serve as the ultimate guide of construction to finish firms in their projects.

Answer 2

Blueprints

Question 3

Organisms rely on certain groups of biological molecules to determine their final ______ characteristics and how they will maintain and sustain a wide range of biological functions.

Answer 3

Phenotypic

Question 4

A very important biological molecule that contains information needed to drive various biological functions for the development, maintenance, and survival of organisms.

Answer 4

DNA

Question 5

These are the monomeric units of both DNA and RNA

Answer 5

Nucleotides

Question 6

Each of the nitrogenous bases exists in two alternative forms called?

Answer 6

Tautomeric States

Question 7

Forms when a sugar molecule binds with a phosphate group.

Answer 7

Phospoester bond

Question 8

A type of bond that joins a carbohydrate (sugar) molecule to another group, which may or may not be another carbohydrate.

Answer 8

Glycosidic bond

Question 9

The sugar in DNA is a _____.

Answer 9

Deoxyribose

Question 10

For cells to survive and reproduce every generation, they highly rely on their ability to duplicate their genetic material in a process called ____.

Answer 10

DNA replication

Question 11

Model that shows the whole double-stranded DNA molecule serves as the template for duplication to produce an entirely new DNA molecule while fully conserving the original copy.

Answer 11

Conservative model

Question 12

Shows that the DNA strands separate and break down into fragments for them to serve as templates to synthesize new sequences.

Answer 12

Dispersive model

Question 13

Model that states that each of the DNA strands will serve as a template to synthesize new DNA molecules. Thus, each of the products of this mechanism shall consist of an old and new strand.

Answer 13

Semi-conservative model

Question 14

Genetic evidence suggests that Mexican were able to breed corn from its ancestor called ______.

Answer 14

Teosinte

Question 15

Controlled process of subjecting two parent organisms to sexual reproduction to produce offspring.

Answer 15

Breeding

Question 16

The branch of agriculture that is particularly harnessing various breeding techniques to influence the production of animal-based products such as meat, dairy, and eggs is called ______.

Answer 16

Animal husbandry

Question 17

Various breeding techniques are also practiced in the conservation of threatened or nearly extinct species. This effort is called ______.

Answer 17

Captive breeding

Question 18

Provided evidence of the first crop domestication, which took place at around 9000BC. (Place/location)

Answer 18

Tigris River

Question 19

One of the oldest techniques in breeding crops. The premise in this type of breeding is not all individuals of a population will be able to reproduce and transmit their genes to the next generation.

Answer 19

Selective breeding

Question 20

In this type of selection, the seeds of these selected plants will then be planted together within a single lot, and the seeds of the selected plants will be used for growing the next generation.

Question 21

This type of breeding, asexual or vegetative propagation techniques are usually employed and clones are acquired from a single plant.

Answer 21

Clonal selection

Question 22

Involves the mating or crossing between two plant individuals with different genotype.

Answer 22

Hybridization

Question 23

Aims to improve the quality of a crop by selecting good-quality offspring every generation and allowing them to pollinate (both self-pollination and cross-pollination are allowed).

Answer 23

Mass selection

Question 24

Aims to combine two superior traits from different breeds or species of plants.

Question 25

A method in animal breeding that is more or less similar to the pure-line selection.

Answer 25

Inbreeding

Question 26

A technique that involves the mating of two individuals from different breeds.

Answer 26

Crossbreeding

Question 27

Also known as cell fusion technique.

Answer 27

Somatic hybridization

Question 28

Isolated cells produced by removing the surrounding cell wall either by mechanical means or by the use of cell wall degrading enzymes.

Answer 28

Protoplasts

Question 29

This is a biotechnological technique that involves the manipulation of genes of an organism by altering gene expression or by introducing a foreign gene to a host organism.

Answer 29

Genetic engineering

Question 30

A method that uses physical radiation or chemical means to induce spontaneous genetic variation in plants to develop new crop varieties.

Answer 30

Mutation breeding

Question 31

A modern technique in plant breeding which involves an improved tissue-culture process

Answer 31

Somatic hybridization