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Worksheets

Genetics Keywords and Definitions

Total questions: 19

Worksheet time: 38mins

Name
Class
Date
1.

Two different Alleles is called what?

a)

homozygous

b)

recessive

c)

dominant

d)

heterozygous

2.

A nucleic acid that determines the characteristics of most living things

a)

DNA

b)

RNA

c)

Genotype

d)

Phenotype

3.

Building blocks of DNA and RNA (Sugar + phosphate + base)

a)

nucleus

b)

chromosomes

c)

nucleotide

d)

Dominant

4.

What is the different forms of the same gene?

a)

gene

b)

phenotype

c)

Allele

d)

genotype

5.

What are genes present on sex chromosomes?

a)

sex-linked genes

b)

mutations

c)

Pheno

d)

geno

6.

What is a thread - like structure composed of DNA condensed around proteins?

a)

DNA

b)

allele

c)

gene

d)

Chromosomes

7.

What is a characteristic expressed in both homozygous and heterozygous conditions?

a)

recessive

b)

Dominant

c)

hybrid

d)

none of the above

8.

What is an observable characteristic of an organism?

a)

dominate

b)

genotype

c)

phenotpye

d)

recessive

9.

What is the chromosomes in a cell, excluding the sex chromosomes?

a)

Autosome

b)

DNA

c)

Gene

d)

recessive

10.

What is a section of DNA that codes for a particular polypeptide?

a)

Allele

b)

Gene

c)

DNA

d)

Autosome

11.

What is two copies of the same allele example aa?

a)

domainant

b)

hybrid

c)

homozygous

d)

heterozygous

12.

What is the process where DNA codes for production of RNA?

a)

DNA

b)

Dominant

c)

recessive

d)

transcription

13.

What is an image of chromosomes in a cell- used to identify genetic disorders such as Down Syndrome

a)

chromatid

b)

recessive

c)

Karyotype

d)

sex chromosome

14.

What chromosomes which determine gender?

a)

chromatin

b)

Chromosomes

c)

translation

d)

sex chromosomes

15.

What is the process where RNA acts as a code for production pf a polypeptide (folds to make protein)

a)

allele

b)

gene

c)

translation

d)

dominant

16.

Which characteristic is only expressed in the homozygous condition?

a)

recessive

b)

doominant

c)

hybrd

d)

heterozygous

17.

What is uncoiled DNA, seen in nucleus when not dividing?

a)

centromere

b)

none of the above

c)

gene

d)

chromatin

18.

What is the point where two chromatids join to form a chromosome?

a)

recessive

b)

dominant

c)

centromere

d)

gene

19.

Arm of chromosome during cell division

a)

sex-linked

b)

crossing over

c)

allele

d)

chromatid