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What causes the change in phenotype frequency in a population after each generation?
Gene mutation causes the phenotype frequency in a population to change after each generation.
What does a punett square show?
The chance of a particular trait being inherited. For each trait there are several alleles, some are dominant and others recessive, for example brown eyes are dominant over blue. The recessive phenotype can only have a genotype with both recessive alleles eg. bb The dominant phenotype can have a genotype with both dominant alleles eg. BB or one of each eg. Bb A punnet square shows the likelihood of a phenotype being inherited from given genotypes, alleles etc... BB and Bb makes BB BB Bb Bb All offspring will have the dominant phenotype (BB or Bb) eg. brown eyes Bb and Bb makes BB Bb Bb bb One in four of the offspring will have the recessive phenotype (bb) eg. blue eyes
If two alleles have incomplete dominance what will resulting phenotype be for an individual who carries on copy of each allele?
This individual will show a mixture of these two traits
What allows humans to have different traits?
Different alleles allow people to have different traits from each other.
If two alleles have incomplete dominance what will the resulting phenotype be for an individual who carries one copy of each allele?
the individual will show a mixture of these two trait.
Different forms of gene?
Alleles are the different types of genes.
What do dominant and recessive alleles have in common?
Alleles are different types of a gene. Each gene controls a characteristic and they is usually a recessive allele and a dominant one. The main similarity is that they both control a certain characteristic!
How do you deterime phenotypes?
phenotypes are decided by the alleles for that particular characteristic, by a dominant or two recessive alleles. For example, cystic fibrosis has a recessive allele so the phenotype of cystic fibrosis would only appear if there were two of the recessive allele, one from each parent, were present. A heterozygous carrier of the cystic fibrosis allele would show the phenotype of not having cystic fibrosis. So to determine the phenotype simply find out which allele is dominant and find what alleles each parent has the the probability of each phenotype can be calculated
How do humans get their eye hair and skin color?
This is through genes from the parents. Overall, you have 23 pairs of chromosomes and on each chromosomes are alleles which have different genetic make-up giving you a different phenotype (appearance).
What three or more forms of a gene that code for a single trait called?
A gene can have multiple forms, which are called Alleles. While a single gene may code for a trait in an organism, when multiple alleles exist for that gene, each different may produce a different character of that trait. For example, a person has two copies of the gene that codes for ABO blood type. There are three different alleles for this gene, A, B and O. This results in six different combinations of the alleles that the person can have (the genotype), which in turn results in four expressions of the gene in the person (called the phenotype), which is the blood type of the person.
What causes the change in phenotype frequency in a population after each generation?
Gene mutation causes the phenotype frequency in a population to change after each generation.
How are genes and and alleles related to genotype and phenotype?
They are related to each other because...Genes and alleles are the traits inside an object, when using a punnet square, we take the genotype out of that object to make experiments.
How are gene and alleles related to genotype and phenotype?
They are related to each other because...Genes and alleles are the traits inside an object, when using a punnet square, we take the genotype out of that object to make experiments.
Do both alleles of a gene pair make up an organisms genotype?
If by gene pair, you mean the two copies of each gene present in a diploid cell, then yes. Both alleles make up an organisms genotype, though they might not both be expressed in the phenotype, if one is recessive for instance.
What does a punett square show?
The chance of a particular trait being inherited. For each trait there are several alleles, some are dominant and others recessive, for example brown eyes are dominant over blue. The recessive phenotype can only have a genotype with both recessive alleles eg. bb The dominant phenotype can have a genotype with both dominant alleles eg. BB or one of each eg. Bb A punnet square shows the likelihood of a phenotype being inherited from given genotypes, alleles etc... BB and Bb makes BB BB Bb Bb All offspring will have the dominant phenotype (BB or Bb) eg. brown eyes Bb and Bb makes BB Bb Bb bb One in four of the offspring will have the recessive phenotype (bb) eg. blue eyes
What is the name for each gene in a pair of genes that might or might not carry the same info about a trait?
the name is hybrids
If two alleles have incomplete dominance what will resulting phenotype be for an individual who carries on copy of each allele?
This individual will show a mixture of these two traits
