Genetic and genes regulation Flashcards

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1
Q

Define Genes.

A

A basic physical and functional unit of hereditary

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2
Q

Some Genes act as instructions to make molecules called———?

A

Proteins

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3
Q

forms of the same genes with small different in their sequence of DNA base are?

A

Alleles

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4
Q

Name 3 Mandell’s laws.

A

law of segregation
law of independent assortment
law of dominance

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5
Q

In which law, pairs of alleles are separated when gametes are formed?

A

law of segregation

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6
Q
pairs of alleles will be sorted independently of one another when gametes are formed:
A. law of dominance 
B. law of CO-dominance 
C. law of independent assortment 
D. law of incomplete dominance
A

C

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7
Q

When no allele blocks another allele both are present in the offspring

A

Co-dominace

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8
Q

An intermediate phenotype results in heterozygotes who inherit both alleles producing an offspring with new traits

A

incomplete dominance

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9
Q

In which phase of meiosis is the law of segregation apply

A

Anaphase 1/2

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10
Q

in which phase of meiosis is law of independent assortment Apply.

A

Metaphase 1/2

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11
Q

A change of a single DNA nucleotide within the protein-coding portions of a gene does not affect the sequence of the amino that makes up the genes proteins

A

Single Mutations

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