Answer:
A homozygous dominant genotype is one in which both alleles are dominant.
Explanation:
For example, in pea plants, height is governed by a single gene with two alleles, in which the tall allele (T) is dominant and the short allele (t) is recessive.
Biosphere, relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean.
Answer:
10 chromosomes/sister chromatids
Explanation:
Prophase is the first stage of cell division (mitosis). Prior to the cell entering the actual division stage, it undergoes a phase where it prepares its content and most importantly undergo the duplication of its genetic material (DNA). This DNA are found as chromosomes. It undergoes replication of its DNA in the S-phase of interphase stage.
Since Arabidopsis thaliana has 10 chromosomes, and each chromosome holds one DNA molecule, 10 molecules of DNA will be present in the mustard plant's genome. These 10 molecules of DNA will be replicated on another copy of chromosome which is identical to the template. This chromosomes are called SISTER chromatids i.e. replicated chromosome. Each sister chromatids are held together at the centromere and are considered one individual chromosome until they separate during anaphase stage.
Hence, at the Prophase stage, before separation, each sister chromatid (replicated chromosome) is considered as one chromosome. Thus, in the mustard plant with 10 chromosomes, it will possess 10 sister chromatids or chromosomes at the Prophase stage.
N.B: When sister chromatids separate during anaphase stage, they will be regarded as individual chromosomes.
Antenatal clinic is a clinic that is involved in provision of care to pregnant mothers. They are given advise on nutrition that is the food to eat and the ones they are not supposed to eat among other advises. The care is provided by doctors, midwifes and nurses. Pregnancy is divided into trimester namely first trimester ( first 3 months), second trimester (middle three months) and third trimester (last three months of pregnancy). During the third trimester many changes may be observed and the nurses may report the following findings to the provider during this trimester; they include varicose veins, Hemorrhoids and lordosis (change in the curvature of the spine) which are normal however client teaching is recommended. In addition, the findings may include leg cramps (normal) and fainting spells not normal but may be felt when the client is rising.
