Table of Contents
What is it called when two chromosomes that have genes for the same traits in the same order?
Homologous chromosomes are chromosomes which contain the same genes in the same order along their chromosomal arms.
When you have two of the same genes is called?
If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous. Though the term allele was originally used to describe variation among genes, it now also refers to variation among non-coding DNA sequences.
What name is given to chromosomes that carry the same genes?
A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and centromere location. A homologous pair consists of one paternal and one maternal chromosome. In humans, there are a total of 46 chromosomes in the nucleus of a somatic cell.
Are pairs of chromosomes that have genes for the same traits arranged in the same order?
Pairs of chromosomes that have genes for the same traits arranged in the same order are called homologous (huh MAH luh gus) chromosomes. Because one chromosome is inherited from each parent, the chromosomes are not always identical.
What term refers to having two of each type of chromosome in the nucleus of a cell?
Diploid is the term that refers to the number of each type of chromosome that an organism has. And diploid specifically means every cell in that organism has two copies of each type of chromosome. So diploid means you have two of each type of chromosome.
Are pairs of genes that carry the same traits and are found at the same location?
a genotype consisting of two different alleles of a gene for a particular trait (Aa). They also have the same genes, but not necessarily the same alleles, at the same locus or location. homozygous. having the same allele at the same locus on both members of a pair of homologous chromosomes.
In what the 2 chromosomes are always identical?
A chromatid is one of two identical halves of a replicated chromosome. Following DNA replication, the chromosome consists of two identical structures called sister chromatids, which are joined at the centromere.
What happens when two alleles for the same trait come together?
C: when different alleles for the same trait come together, one allele will be recessive to another. D: when two identical alleles come together, complete dominance occurs in terms of phenotype. E: genes for different traits assort independently of each other during the formation of egg and sperm.
Where are the same genes found on both chromosomes?
Genes for the same characteristics are found at the (same or different) loci on both homologous chromosomes.
E: genes for different traits assort independently of each other during the formation of egg and sperm. A: Genes separate from each other during gamete formation so that each sperm and egg receive only one allele from each pair. A: predicting the ratios of possible genotypes of a particular combination of alleles.
Which is the only factor influencing phenotype expression?
D: the environment has no influence in phenotype expression. E: the genotype makeup of individuals in a population is the only factor influencing phenotypes. A: multiple alleles and genes contribute to a phenotype.