17.- Variation in a species

Description

https://www.khanacademy.org/science/biology/her/evolution-and-natural-selection/v/variation-in-a-species
PEDRO ALVAREZ JIMENEZ
Quiz by PEDRO ALVAREZ JIMENEZ, updated more than 1 year ago
PEDRO ALVAREZ JIMENEZ
Created by PEDRO ALVAREZ JIMENEZ about 9 years ago
131
2

Resource summary

Question 1

Question
Any change in our DNA code can produce an effect, most of the time in form of…
Answer
  • Mutation that produces cancer
  • Mutation that produces positive changes
  • Mutation that changes the proteins

Question 2

Question
What is the human being chromosomal number?
Answer
  • 46 pairs of chromosomes
  • 23 pairs of chromosomes
  • 23 chromosomes

Question 3

Question
Why do we have two different alleles for each trait?
Answer
  • Because we need them for variation
  • Because we inherited from our parents
  • Because we have pairs of chromosomes

Question 4

Question
Why homologous chromosomes are not identical?
Answer
  • They present the same set of genes but different alleles
  • They present different set of genes but the same alleles
  • The present different set of genes and different alleles

Question 5

Question
What is the difference between genotype and phenotype?
Answer
  • What we don´t see and what we see
  • Always the same and always different
  • The second is the physical representation of the first

Question 6

Question
Mutation is a rare event, so that variation in species is due to what processes?
Answer
  • Recombination
  • Sexual reproduction
  • Genetic drift

Question 7

Question
Why having two genders have been such a great idea?
Answer
  • Because it is very funny
  • Because it introduces variation into population
  • Because we need more biodiversity
Show full summary Hide full summary

Similar

Physics Revision
Tom Mitchell
OCR Biology AS level (f211) flashcards/revision notes
Dariush Zarrabi
Gender Theorists
Hazel Meades
American West - Key Dates
Rachel I-J
Maths Revision- end of year test
hannahsquires
GCSE Computing - 4 - Representation of data in computer systems
lilymate
A Level Chemistry Unit 1 - Organic Chemistry
charlottehyde
GCSE AQA Biology - Unit 2
James Jolliffe
GCSE Biology B1 (OCR)
Usman Rauf
AQA GCSE Physics Unit 3 Mindmap
Gabi Germain
AQA GCSE Biology B1- Quiz
Ethan Beadling