Which cells have no nucleus?<span>Prokaryotic cells (like bacteria) are very simple cells.
Can only be called single-celled?:
</span>A unicellular organism, also known as a single-celled organism, is an organism that consists of <span>only one cell.
</span>
<span>Can either be single- or multi-celled:
</span><span>Eukaryotic cells are cell's that form colonies with a LOT of differentiation are called multicelled</span>
The answer is D. Bacterial calls do not have chloroplasts or cell walls, but both have cell membranes ribosomes, and a nucleus.
<span>The correct answer would be C. The adrenal glands, which are also known as suprarenal glands, are glands that belong to the endocrine system. Adrenal gland produces the steroids aldosterone and cortisol and various hormones including adrenaline which help in the response of an individual to stress. They are found above the kidneys. Each of the gland has an inner medulla and an outer cortex which produces steroid hormones. The adrenal cortex has three zones which are zona glomerulosa, the zona fasciculata and the zona reticularis.</span>
Answer:
D
Explanation:
the smaller the population the less likely genetic drift is
1. If we cross YyLl (heterozygous parent with dominant traits) with yyll (homozygous parent with recessive traits)
P: YyLl x yyll
F1 generation: YyLl: 400 Yyll: 100 yyLl: 100 yyll: 400
Recombinant offspring are those children whose genes contain a non-parental allele combination (neither allele group is directly inherited from either parent). This happens when genes are located on the same chromosome but are so far apart from one another so that their alleles get crossed over during meiosis. In this case, Yyll and yyLl are the recombinant.
2. Calculation of distance between Y and L.
The numbers of the two recombinant types is 200 (100 Yyll + 100 yyLl) and 800 parental offspring.
Total number of offspring is 1000.
So: 200/1000*100=20 map units.
There is 20 percent recombinant offspring frequency.
