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How many lethal genes would the typical human have if the alleles were homozygous?
A typical human would have around 1-2 lethal genes if homozygous for lethal alleles. Lethal genes are usually rare in the human population due to the negative impact on survival and reproduction.
In humans a trait can be determined by one pair or many pairs of?
the minimum requirement is one pair but it could be more than one pair, an example can be found in human ABO blood groups. it an example of multiple alleles
How many different types of gametes can a heterozygous woman with two genes produce?
A heterozygous woman with two genes (each having two alleles) can produce four different types of gametes due to the random assortment of alleles during meiosis.
Why does the y chromosome not carry any alleles?
The Y chromosome is smaller than the X chromosome and contains fewer genes. It carries the genes necessary for determining male sex and some other genes, but it lacks many of the genes present on the X chromosome. This is why the Y chromosome does not carry any alleles in the same way that the X chromosome does.
How are alleles and genotypes related?
DNA is composed of long strings of nucleic acid sequences, but not all of them code for proteins. The ones that do are called genes. Alleles are different versions of a certain gene. For example, the gene that codes for blood type has 3 different alleles, A, B, and O. The genes that code for hair and eye color also have many different alleles.
How many lethal genes would the typical human have if the alleles were homozygous?
A typical human would have around 1-2 lethal genes if homozygous for lethal alleles. Lethal genes are usually rare in the human population due to the negative impact on survival and reproduction.
What three ways are human traits controlled?
Human traits are controlled by a combination of genetic factors (inherited from parents), environmental factors (such as diet and lifestyle), and epigenetic factors (changes in gene expression without changes in the underlying DNA sequence). These factors interact in complex ways to influence the development and expression of human traits.
About how many genes do horses have?
An individual Thoroughbred cannot have more than two different alleles for each gene locus, one on each chromosome. How many alleles are available at a certain gene locus is variable based on what the gene controls and how many alleles are available and their frequency in the population.
In humans a trait can be determined by one pair or many pairs of?
the minimum requirement is one pair but it could be more than one pair, an example can be found in human ABO blood groups. it an example of multiple alleles
How many different types of gametes can a heterozygous woman with two genes produce?
A heterozygous woman with two genes (each having two alleles) can produce four different types of gametes due to the random assortment of alleles during meiosis.
Why some chromosomes are recessive and the others are domainent?
Actually a chromosome consists of many genes/alleles and is neither recessive or dominant in and of itself.
How many alleles are found in the gamete cell?
10
A species that has a high number of alleles for many genes that are distributed throughout the population is said to have?
A high genetic variability
Why does the y chromosome not carry any alleles?
The Y chromosome is smaller than the X chromosome and contains fewer genes. It carries the genes necessary for determining male sex and some other genes, but it lacks many of the genes present on the X chromosome. This is why the Y chromosome does not carry any alleles in the same way that the X chromosome does.
How many alleles are found in every cell's nucleus?
99999999999999999
How are alleles and genotypes related?
DNA is composed of long strings of nucleic acid sequences, but not all of them code for proteins. The ones that do are called genes. Alleles are different versions of a certain gene. For example, the gene that codes for blood type has 3 different alleles, A, B, and O. The genes that code for hair and eye color also have many different alleles.
How does the work of Gregor Mendel explain the rules of Heredity?
It explains the simplest form of genetic inheritance involving traits controlled by single genes having only dominant and recessive alleles. It does not directly explain genetic inheritance involving more complex traits (e.g. multiple interacting genes, genes having many different alleles, gene suppression).
