If the haploid number of a species is n, and 2n = 48, an individual of this species with 49 chromosomes would be called ?
| polyploid |
| abberant |
| euploid |
| aneuploid |
| sterile |
Aneuploid
Note- the abnormal number of chromosome is aneuploid . The increase or decrease in one number of chromosome is called aneuploidy . The polyploidy is cell which have more than two pair of chromosome.
If the haploid number of a species is n, and 2n = 48, an individual of...
A sterile offspring forms when two plant species, one with (4n=48) and one with (2n=12) chromosomes, cross fertilize. This unique offspring grows asexually until a chromosome doubling occurs in part of the plant, creating flowers that contain sperm and eggs with ____ chromosomes.
A plant species X with n=5 chromosomes was crossed with a related species Y with n = 7 chromosomes. The F1 hybrids produced only a few pollen grains, which were used to fertilize the ovules of related species Z with n=7 chromosomes. A few plants were produced from this cross, and all had 19 chromosomes. The F1 hybrids (with 19 chromosomes) were mated with related species W with n=11 chromosomes. A few plants were produced from the cross and all...
43. When fully formed all-female race, we call this spring develop from haploid eg cets and has the potential to create an from b. Euploidy d. Oogenesis 44. Whe n a mass of cells that appears cancerous has spread to other parts of the body from where it originated we call this a. benign b. malignant c. euploidy d. syngamy Bacteria divide by a. Mitosis b. Meiosis c. Binary fission d. Cytokinesis 45. When a sperm cell penetrates an egg...
Species I has 2n = 8 chromosomes and species II has 2n = 14 chromosomes. What would the expected chromosome numbers be in individuals with the following chromosome mutations? Give all possible answers. Allotriploidy including species I and II Autotetraploidy in species II Trisomy in species I Monosomy in species Allotetraploidy including species I and II
In the moss Polytrichum commune, the haploid chromosome number is 7. A haploid male gamete fuses with a haploid female gamete to form a diploid cell that divides and develops into the multicellular sporophyte. Cells of the sporophyte undergo meiosis to produce haploid cells called spores. What is the probability that an individual spore will contain a set of chromosomes all of which came from the male gamete? (You may assume that no crossing over occurs during meiosis.) 0 0.5...
If a series of four alleles exists in a given diploid (2n) species, how many alleles would be present in: a. a chromosome? b. a pair of chromosomes? c. an individual member of the species? How many genotypic combinations would occur in the entire species?
Species 1 is diploid (2n = 4) with chromosomes AABB, a related Species ll is diploid (2n-4) with chromosomes CCDD. Indicate the chromosomes that would be found in individuals with the following chromosome mutations. a. an autotetraploid of Species I b. an allohexaploid c. risomic for chromosome B d. a nullisomic for chromosome C
Genetics
n is the basic number of chromosomes In humans 2n- 46 n-23 X is the number of chromosomes in a gamete or half the number of chromosomes of a diploid organism In humans 2x = 46 x 23
Part A The haploid number for the mosquito is 3, how many chromosomes are found in a member of the species that has one of the following characteristics? Sort these (items) into the proper categories. Reset Help 6 chromosomes15 chromosomes 5 chromosomes 18 chromosomes Diploid Pentaploid Octaploid Trisomic Triploid Monosomic Tetraploid Hexaploid 9 chromosomes 7 chromosomes
1. Represent all chromosomes in a 2n = 4 cell before replication. Number the homologous chromosomes as you would in a karyotype (e.g., Chromosome 1, Chromosome 2). 2. Gene F is on Chromosome 1 and gene G is on Chromosome 2. This cell carries two different alleles of gene F (called F and f), and two different alleles of gene G (called G and g). Label these alleles on the unreplicated chromosomes that you drew above. 3. In the space...