PHS: Edexcel sB3a Asexual v Sexual

What do we call reproduction without fertilisation?

• sexual reproduction
• asexual reproduction
• cloning
• meiosis

Which of these is an advantage of asexual reproduction over sexual reproduction?

• it's much faster
• there is much more variation in the offspring
• there is much less variation in the offspring
• it's much slower

Which of these is an advantage of sexual reproduction over asexual reproduction?

• it's much faster
• there is much more variation in the offspring
• there is much less variation in the offspring
• it's much slower

What do we call a very long coiled up molecule of DNA, which contains genes?

(a)  

What is the type of cell division in which one parent cell produces two identical diploid daughter cells?

(a)  

What does the word "diploid" mean?

• a cell, or nucleus, that has two sets of chromosomes

• a cell, or nucleus, that has one set of chromosomes

• a cell that splits into two new, identical cells.

• a cell that has a mutated nucleus

What does the word "haploid" mean?

• a cell, or nucleus, that has two sets of chromosomes

• a cell, or nucleus, that has one set of chromosomes

• a cell that splits into two new, identical cells.

• a cell that has a mutated nucleus

The runners produced by strawberries are an example of which type of reproduction?

• sexual

• asexual

• neither, they have nothing to do with reproduction

Which of these animals are able to reproduce asexually?

• certain species of shark

• humans

• penguins

• seals

In an environment that is changing rapidly - in terms of climate, availability of food and spread of disease, which type of reproduction would be the most advantageous?

• sexual

• asexual

• neither, it doesn't matter