variation

Which one of the following is an environmental variation?

• Attached ear lobes
• Eye colour
• Male or female
• Short hair

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

Which of these is an example of inherited variation only?

• Eye colour 
• Height 
• Weight 
• Skin colour 

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Differences between members of the same species are called

• predators
• traits
• selections
• variations

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Which of the following are genetically inherited human characteristics that are not affected by any changes in the environmental conditions?

I Skin colour

II Blood group

III Presence of a dimple

IV Height

• I and II

• I and III

• II and III

• III and IV

The following information is about two individuals, X and Y.

*Individual X: presence of a dimple

*Individual Y: no dimple

Which of the following factors causes the difference in the trait between the two individuls?

• mutation

• genetics

• hormone

• environment

Variation in a trait may be due to the change in a genetic material.What do you call this type of change?

• radiation

• mutation

• inversion

• deletion

Diagram below shows an illustration of the gene sequence on a chromosome before and after exposure to radioactive radiation.

This is an example of .....

• deletion

• inversion

• duplication

• substitution

In cats, the allele for short hair is dominant to the allele for long hair. A short-haired cat gives birth to five kittens. Two of them have long hair.

Which statement must be correct?

• Neither of the parents is heterozygous

• One parent is homozygous

• The female cat is heterozygous

• The male cat is heterozygous

Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

Tags

NGSS.HS-LS3-1

What is a phenotype

• The genetic make up (code)
• The physical trait

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2