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the 2 genes are carried on the same chromosome
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What is the exception to Mendel's law of independent assortment?
The exception to Mendel's law of independent assortment is when genes are located close together on the same chromosome and therefore tend to be inherited together, rather than independently assorting during meiosis. This is known as genetic linkage.
What are genes that do not undergo independent assortment called?
Genes that do not undergo independent assortment are linked genes. These genes are located on the same chromosome and tend to be inherited together more often than would be expected by chance.
Describe two ways in which genetic recombination occurs during meiosis?
The independent orientation of chromosome tetrads in prophase I. Simplified diagram, FM FM or FM MF Crossing over also in prophase I. A part of the female chromosome and a part of the male chromosome, aligned together, swap places; genetic material.
What happens if Independent Assortment does not happen?
If independent assortment does not occur during meiosis, then genes located on different chromosomes would not be inherited independently. This would result in offspring inheriting linked genes that are typically separated during meiosis, potentially leading to genetic disorders and a disruption of genetic diversity.
Linked genes are an exception to?
Linked genes are an exception to Mendel's law of independent assortment, where genes located on the same chromosome tend to be inherited together. This is because they are physically close to each other and are less likely to undergo independent assortment during meiosis.
Which of Mendel's laws does Gene Linkage break?
Gene linkage breaks Mendel's law of independent assortment. This law states that alleles for different traits segregate independently during gamete formation. However, when genes are located close together on the same chromosome, they tend to be inherited together, violating the principle of independent assortment, as linked genes do not assort independently.
What is a new combination of genes produced by crossing over and independent assortment?
A new combination of genes produced by crossing over and independent assortment refers to the genetic variation that occurs during meiosis. Crossing over involves the exchange of genetic material between homologous chromosomes, while independent assortment ensures that chromosomes are distributed randomly to gametes. Together, these processes create unique combinations of alleles in the offspring, contributing to genetic diversity within a population. This variability is crucial for evolution and adaptation.
A scientist doing research found that flower color and pollen shape were traits that were always passed together. That is they did not fit Mendel's rule for independent assortment. Why might that be?
the 2 genes are carried on the same chromosome
What is the opposite of independent assortment?
The opposite of independent assortment is dependent assortment, which occurs when genes located close to each other on the same chromosome are inherited together more often than expected by chance. This is due to the genes being physically linked on the same chromosome and not assorting independently during meiosis.
How do the concepts of crossing over and independent assortment contribute to genetic variation during meiosis?
During meiosis, crossing over and independent assortment are two processes that contribute to genetic variation. Crossing over occurs when homologous chromosomes exchange genetic material, creating new combinations of genes. Independent assortment refers to the random alignment and separation of chromosomes during meiosis, leading to different combinations of genes in the resulting gametes. Together, these processes increase genetic diversity by producing offspring with unique combinations of genes from their parents.
What are the 5 basic laws of genetics?
1. Law of Segregation 2. Law of Independent Assortment 3. Law of Dominance 1st Law:Out of a pair of contrasting characters present together, only one is able to express itself while the other remains suppressed. 2nd Law:When there are two pairs of contrasting characters, the distribution of the members of one pair into the gametes is indipendentof the distribution of the other pair. 3rd Law:two members of a pair of factors separate during the formation of gametes. jfd_08
What effect do mutations crossing over and independent assortment have on the distribution of genes in daughter cells?
Mutations, crossing over, and independent assortment contribute to genetic variation in daughter cells during meiosis. Mutations introduce new alleles, while crossing over mixes genetic material between homologous chromosomes, leading to unique combinations of genes. Independent assortment further randomizes the distribution of maternal and paternal chromosomes into gametes. Together, these processes ensure that each daughter cell has a diverse genetic makeup, enhancing variability in a population.
