What is meant by the term polyploidy?

an increase in the number of chromosomes by 3 or more times

a decrease in the number of chromosomes by 3 or more times

an addition in the number of chromosomes in gametes

a subtraction in the number of chromosomes in gametes

How are polyploidy plants economically important to farmers?

they are smaller so farmers will have a bigger yield

they make the coffee taste better

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1What name is given to the process by which a spindle fibre fails during meiosis and one or more of the gametes produced receives an extra chromosome?
1. Anon-disjunction
2. Bmeiosis
3. Cpolyploidy
4. Dmutation
2How many gametes (out of 4) will receive an extra chromosome if the spindle failure occurs during the first meiotic division?
1. A2
2. B4
3. C1
4. D0
3If a normal human sperm fertilizes an egg containing an extra copy of chromosome 21, what is the diploid number of the zygote formed?
1. A44
2. B46
3. C47
4. D43
4What is meant by the term polyploidy?
1. Aan increase in the number of chromosomes by 3 or more times
2. Ba decrease in the number of chromosomes by 3 or more times
3. Can addition in the number of chromosomes in gametes
4. Da subtraction in the number of chromosomes in gametes
5How are polyploidy plants economically important to farmers?
1. Athey are resistant to disease
2. Bthey are smaller so farmers will have a bigger yield
3. Cthey make the coffee taste better
4. Dthey give bigger yields
6What name is given to a change which involves a chromosome breaking in two places and a segment of genes dropping out?
1. ADeletion
2. BDuplication
3. CInversion
4. DTranslocation

Descripción: A quiz on Mutations to follow after Mutations notes by laldypop
Autor: laldypop
Idioma: English
Visitas: 101
Etiquetas: biology higher unit 2 genetics and adaptation mutations quiz
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