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If a mans father has a BBkk genotype for two particular genes and his mother has the BBkk genotype what will the mans genotype be?
BBkk as there is no other alleles present for the man to inherit. the father can only pass on a B allele and a k allele and the mother can also only pass on a B allele and a k allele.
If a man carries a harmful sex-linked gene in his X chromosome who will he pass this on to?
He will pass this harmful sex-linked gene on to his daughters. Sons will inherit their Y chromosome from their father, not his X chromosome.
What describes the man's trait and the alleles in his sperm cells if he inherited the dominant allele from his mother and recessive allele from his father?
As long as you aren't talking about a trait or gene that behaves co-dominately or some other exception, the man would have the dominant trait show up and his alleles would be dominant and recessive (or Dd if you are using letter symbols for the alleles- upper case being the dominant allele from the mom's egg and lower case for the recessive allele from the dad's sperm). So for example if we are talking about the gene for earlobes we can use the letter E to represent the two alleles or genetic variations: E for un-attached earlobes and e for attached earlobes. A sex cell (sperm or egg) has one allele each so that when they unite to make an embryo the new person has 2 alleles- one from each parent. So if the man inherited a dominant allele E from his mom and a recessive allele e from his father then he would have Ee as his "genotype"(what alleles he has). His "phenotype" is what trait he shows, which would be what ever is dominant-- in this case E equals un-attached earlobes.
Can a man with blood type b and a woman with blood type ab have a child with blood type b?
Yes, a man with blood type B and a woman with blood type AB can have a child with blood type B. The child would inherit one allele for blood type B from the father and either an A or B allele from the mother. The child's blood type could be either B or AB.
A woman is homozygous for A-negative blood type. A man has AB-negative blood type. What is the probability that the couples child will be type B-negative?
The genotype of the man is A negative/O negative inheriting the A neg from his mother and O negative from his father. [Father's genotype is B positive/O negative. Mother's genotype is B positive/A negative.]
If a mans father has a BBkk genotype for two particular genes and his mother has the BBkk genotype what will the mans genotype be?
BBkk as there is no other alleles present for the man to inherit. the father can only pass on a B allele and a k allele and the mother can also only pass on a B allele and a k allele.
If a man is heterozygous for the alleles that cause the condition and has children with a woman who lacks that defective allele?
If a man is heterozygous for the alleles that cause the condition and has children with a woman who lacks that defective allele, there is a 50% chance that each of their children will inherit the defective allele. This is because the man can pass on either the normal or defective allele, resulting in a 50% chance of passing on the defective allele.
Why is a man genotype Cc?
A man with a genotype of Cc means he has one allele for the dominant trait (C) and one allele for the recessive trait (c). This genotype indicates that he carries both versions of the gene and can pass on either the dominant or recessive trait to his offspring. The expression of the dominant or recessive trait will depend on how the alleles interact with each other.
Can a woman with B plus and a man with O have a child that is O negative?
Yes, if the mother's genotype is BO, she may pass the O allele on to the child and it will be type O.
A man has one recessive allele and one dominant allele. what is his phenotype?
He would have the recessive phenotype for that trait.
If a man carries a harmful sex-linked gene in his X chromosome who will he pass this on to?
He will pass this harmful sex-linked gene on to his daughters. Sons will inherit their Y chromosome from their father, not his X chromosome.
What is the probability of a man carrying the allele for huntington's disease who marries a woman who is homozygous recessive for the allele having offspring with huntington's disease?
It depends on the two alleles the man carries; if he is carrying HH- it is a 100% chance, because HD is autosomal dominant. If his allele is Hh, it is a 50% chance.
Curly hair is recessive and straight hair is dominant A woman with curly hair marries a man who is homozygous dominant for straight hair. What are the outcomes for their children?
All of their children will have straight hair, as the father can only pass on the dominant straight hair allele. The children will inherit one straight hair allele from their father and one curly hair allele from their mother, but the dominant straight hair allele will mask the recessive curly hair allele.
Which sentence correctly describes the relationship between genes and alleles?
She inherited brown eyes, a dominant allele in both her parents.
If a man is colorblind his mother must have the allele for this disorder on at least one of her X chromosome?
True
A man and a woman are both heterozygous Freckles are dominant over no freckles What are the chances their children will have freckles?
There is a 75% chance that their children will have freckles and a 25% chance that their children will not have freckles. This is because both parents are carriers of the freckles allele and can pass it on to their offspring.
What do you call someone who carries bags?
a porter or bell man
