Answer:
A heterozygous trait contains two different allelic forms of a gene in which one is a dominant allele and one is recessive allele. If there is a crossing between two plants that are heterozygous for their trait then the probability of expression of the dominant allele is 3/4.
So according to this question plants are heterozygous that means the genes would be like Pp and Pp. Here P indicates the purple color allele which is dominant and p indicates recessive white color allele.
Therefore cross between these two will give genotypes PP, Pp Pp, and pp. So according to the law of dominance that says dominant allele will express itself, therefore, probability of purple-flowered offspring is 3/4 because 3 out of four genotypes have the dominant allele.
Answer:
Accessory structures or B
Explanation:
Answer for edgenuity
C. law of dominance
D. random segregation
E. independent assortment
Sexual reproduction promotes genetic variation. One way variation occurs is via the production of gametes during meiosis. Sexual organism are the product of sperm and egg, receiving chromosomes from both parents. But what mechanisms are at work during meiosis to promote genetic variation? Review the prompt and select all that apply
Independent assortment that promotes genetic variety is a chromosomal assortment and crossing over. Thus, options are -
(A) Crossing over
(D) Random segregation
(E) Independent assortment
During the metaphase stage of meiosis, the chromosomes align in the center, and either the mother's or father's chromosome has an equal chance of being transferred to the daughter's cell. The bigger the number of chromosomes in a karyotype, the greater the likelihood of gamete diversity.
During meiosis, homologous chromosomes cross across, allowing DNA fragments to be exchanged between sister chromatids. This results in variation.
Thus,
(A) Crossing over occurs when homologous chromosomes join up with non-identical twins and swap DNA sections.
(D) The distribution of chromosomes among four gametes is known as random segregation.
(E) Independent assortment entails the separation of a pair's homologous chromosomes into distinct gametes.
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Assessing biological ancestry before sex is primarily done to understand potential health conditions or diseases that are inheritable. It provides a broader understanding of the genetic makeup and can help identify specific inherited traits and conditions for a complete health profile.
Sex and biological ancestry are both important aspects examined when understanding an individual's identity and health. However, assessing biological ancestry before sex is not to determine the individual's gender identity or to deduce sex from biological ancestry, but rather to understand potential health conditions or diseases (Option C). This is due to the fact that certain genetic traits, which could influence one's health profile, are passed down through biological ancestry. Moreover, biological ancestry can reveal a deep genetic pool that isn't limited to sexually inherited traits.
Also, this process helps provide a broader understanding of a person's genetic makeup before narrowing down to the level of biological sex. In addition to this, the information acquired from assessing one's biological ancestry may hint towards specific inherited genetic conditions and traits, forming a more comprehensive health profile.
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may occur in oceans
is a type of transform boundary
is a region where earthquakes occur