GCSE Biology- Genes, Inheritance and Selection - 1 - Exam Style Questions with Answers

Created on December 31, 2022 By

paruppts12

GCSE_OCR_GEN_BIO_5_GENE_1

1 / 10

What is meant when an organism is homozygous?

When an organism has two copies of the same allele

When an organism has two copies of the different gamete

When an organism has two copies of the same gamete

When an organism has two copies of the different allele

2 / 10

What is the genome?

All of the genes present in an organism

All of the allele present in an organism

All of the gamete present in an organism

All of the genes present in an organism

3 / 10

What causes variation?

Mutations in the gamete code

Mutations in the meiosis code

Mutations in the genetic code

Mutations in the genome code

4 / 10

What may happen if there is a mutation in no coding DNA?

It may stop transcription and altar the expression of gamete

It may stop transcription and alter the expression of germ cells

It may stop transcription and alter the expression of DNA

It may stop transcription and alter the expression of genes

5 / 10

What type of cell does meiosis produce?

Diploid germ cells

Male germ cells

Haploid germ cells

Female germ cells

6 / 10

What discovery lead to people accepting Mendel's ideas?

The discovery of the allele

The discovery of the gamete

The discovery of the DNA

The discovery of the gene

7 / 10

What is an allele?

Same versions of the different gene

Different versions of the same gene

Different versions of the different gene

Same versions of the same gene

8 / 10

What is a gene?

A section of DNA that can(but not always) code for a nutrient

A section of RNA that can(but not always) code for a enzymes

A section of DNA that can(but not always) code for a protein

A section of RNA that can(but not always) code for a minerals

9 / 10

What is a chromosome?

Tightly packaged DNA around histone proteins

Loosely packaged DNA around histidine proteins

Loosely packaged RNA around histone proteins

Tightly packaged RNA around histidine proteins

10 / 10

What is a gamete?

Blood cells

Sperm or eggs

Both A and C

Sex cells

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