Genetics & Biotechnology

Genetics

100

What is genetics?

The study of heredity.

200

What are genes made of?

DNA

300

How many chromosomes do humans have?

46 or 23 pairs

400

Inherited traits that children get from their parents come from-

Genes

500

What do we call the genetic make up of the individual, represented by a set of letters?

Genotype

Heredity

100

What is heredity?

The passage of genetic instructions (traits) from parent to offspring.

200

Who first studied heredity and the passage of traits from one generation to the next?

Gregor Mendel

300

What type of organism did Gregor Mendel use to first study heredity?

Pea Plants

400

The physical trait observed in an offspring is known as it's -

Phenotype

500

What two laws did Gregor Mendel implement?

Law of Independence and Law of Segregation

Reproduction

100

Sexual reproduction produces offspring that are genetically _____________ to the parents.

Similar

200

Asexual reproduction produces offspring that are genetically ____________ to the parent.

Identical

300

If you are studying a population of genetically identical individuals, you can conclude that these individuals reproduce how?

Asexually

400

For some traits, only one copy of a particular gene is needed to show a given trait. These genes are referred to as-

Dominant

500

The sorting of chromosomes during sexual reproduction, determines -

Which traits are passed on to the offspring

Punnet Squares

100

Some genes can be hidden or covered up by another. These are considered to be-

Recessive

200

What is the punnet square used for?

To determine the outcome of genetic crossings.

300

A black chicken (BB) is crossed with a black chicken (BB). What percentage of offspring will be black?

100%

400

Having dimples is dominant (D). Not having dimples is recessive. (d) Both parents are heterozygous for the dominant trait. What percentage of the children will NOT have dimples?

25%

500

Long ears are dominant (E) in rabbits. If one parent is homozygous dominant for the long ear trait and the other homozygours reccessive (e), what is the only possible genotype of the offspring?

Ee

Biotechnology and MISC

100

What is one reason for DNA Fingerprinting?

Criminal cases

paternity tests

study biodiversity

200

What is a benefit of cloning

Organs for human transplants, save endangered species

300

What are two concerns scientists have with Genetic Modification?

1. long-term health effects

2. Effects on ecosystem and biodiversity

400

What is the difference between a Law and a Theory

Law- Describes what happens

Theory- explains why or how 

500

George has a garden with GM flowers to be resistant to a specific pest. Next year George's neighbor Sally tells him that her garden now has 1/4  of her flowers have the same immunity, without purchasing GM flowers herself. How is this possible?

Cross-pollination occurred from Georges flowers to Sallys flowers