Explanation

The P generation refers to the parental generation in a genetic cross.

These individuals are considered "pure-breeding," meaning they have homozygous genotypes for a particular trait, and therefore exhibit that trait without any variation. 

Explanation

The invertebrate that has a water vascular system is an echinoderm

Specifically starfish, sea urchins, sea cucumbers, brittle stars, and feather stars.

This unique system is a defining characteristic of the phylum Echinodermata. 

Explanation

Genetic drift is the random fluctuation of allele frequencies in a population.

They are often due to chance events or sampling errors.

It can lead to the loss of alleles, especially in small populations, or the increase in frequency of rare alleles.

The effect of genetic drift is more pronounced in smaller populations

Random events can have a greater impact on allele frequencies. 

Explanation

The enzyme is primarily responsible for unwinding the DNA double helix

During cell division and DNA replication is DNA helicase.

It "unzips" the DNA strands, allowing the strands to be separated and copied.

This unwinding process is crucial for initiating DNA replication. 

Explanation

Crossing over is a form of recombination (or genetic recombination).

It's a type of genetic recombination that occurs during meiosis,

Involving the exchange of genetic material between non-sister chromatids of homologous chromosomes.

This process creates new combinations of alleles, increasing genetic diversity. 

Explanation

The first character to die in Shakespeare's Romeo and Juliet is Romeo's friend Mercutio.

Tybalt is enraged that Romeo and his friends went to a Capulet party.

Believed to have been written between 1591 and 1595,

The play was first published in a quarto version in 1597

Explanation

 The pair "Fish - Internal Fertilization" is incorrect; most fish use external fertilization, meaning the sperm and egg meet outside the female's body, not inside. 

Explanation

 If both parents have AB blood groups (genotype IAIB), their offspring can have blood types A, B, or AB, but not O.

This is because blood group O requires two recessive "i" alleles, which are not present in either parent's genotype. 

Explanation

The concept of the zone of proximal development (ZPD) was developed by Lev Semenovich Vygotsky

During the late 1920s

He was further elaborated upon until his demise in 1934.

Explanation

A phoneme is the smallest unit of sound in a language 

The smallest unit of sound in speech that makes a difference in communication.

For example, the sounds "p" and "b" are different phonemes, as they differentiate the words "pat" and "bat". 

• Syllables
• Onsets 
• Rimes
• Phonemes