结果1 题目33 What are alleles? A a pair of chromosomes B B different versions of the same gene C the total number of genes on one chromosome D two genes side by side on the same chromosome 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
How many chromosomes does a human cell contain? How many chromosomes, chromatids, and alleles are present in each stage of meiosis? Xenopus tropicalis has 10 pairs of homologous chromosomes. How many sex chromosomes in each spermatid can be found in the cell of this organism?
B. alleles C. gametes D. zygotes Sex Cells: Sex cells are a little different than the other cells in the body, because they serve the unique purpose of creating an entirely new life. As such, they each have only half of the chromosomes of other cells. This allows them to...
Hence, associations between markers and traits in the diverse material are, as expected, based on associations between alleles at marker loci and alleles at quantitative trait loci. We propose that our data provide strong evidence for the coadaptation of geographically distinct landraces and that ...
FA is caused by mutations within the frataxin gene. In more than 90% of disease alleles the mutation is an expansion of the GAA repeat in the first intron. Some of the remaining disease alleles havepoint mutationswithin one of the six exons. At the time of writing, all point mutations ha...
Chromosomal incompatibilities can be classified into four types: between the two sex chromosomes (XIY), between the X chromosome and an auto- some (X/A), between the Y and an autosome (Y/A), and between two autosomes (A/A). Theoretical and experimental attempts to produce an explanation...
The probability that two individuals carrying distinct alleles become identical in the next time step (through horizontal gene transfer) is pG and the probability that two individuals that carry identical alleles at the focal locus remain identical (through neither losing the gene) in the next time...
reality, of course, many traits are determined by combinations of genes (rather than by a single gene), so this kind of simple logic doesn't necessarily apply. Nonetheless, if more than one version of a gene exists in a population, geneticists refer to these different versions as alleles. ...
Assuming a similar number of derived alleles within the ingroup, an excess of derived alleles in a specific individual suggests a high error rate. Based on sequencing depth and overall mapping statistics we selected sample GCamTzC_9108 to generate a consensus sequence, using -doCounts 1 -do...
Two types of X chromones are present in stalk-eyed flies. The one carrying the mutation for short eyestalks is adriving X chromosome, or more specifically, ameiotic driver. This means that it carries alleles which are over-represented in a male’s sperm, so it is much more likely to be...