Answer:
25%
Explanation:
In a heterozygous bird the genotype looks like Bb, so Bb x Bb would have 2 Bb offspring, 1 BB offspring and 1 bb offsprings. So there is a 25% chance. (1 out of 4)
This is an example of codominance where both allelles manifest when present.
we cross RR with RW
the offspring are RR RR RW RW
genotype:
50%RR 50RW
phenotype:
50%red 50%spotted
DNA is a double-stranded molecule made out of 4 different nucleotides (Adenosine, Cytosine, Thymine, and Guanine) bonded together by different chemical bonds. All living things possess the same 4 nucleotides in their DNA molecules, which makes DNA the universal way of transmitting genetic information. The 4 nucleotides are combined in pairs and together they make the DNA sequence.
Different parts of this sequence that can be translated into proteins are called genes.
The DNA is found in the nucleus of every cell and it is organized in specific structures called chromosomes. Each species has a different number of these chromosomes, horses have 64 and humans have 46 of them or 23 pairs of homologous chromosomes. So, there are two sets of chromosomes, each inherited from a single parent. The reproductive cells only contain 23 chromosomes (half of the pairs). When two reproductive cells( an egg cell and a sperm cell) are fused in the process of fertilization they make a zygote ( a cell that has 46 chromosomes, or 23 pairs of chromosomes).
So, you have one set of chromosomes that you have inherited from your father and one set of chromosomes that you have inherited from your mother.
The genes in the DNA that you have inherited from your parents determine all of your traits (eye color, height, the shape of your face etc.).
Genes can sometimes have different forms called alleles. Some alleles can be dominant, meaning that they are always expressed no matter what allele is on the other homologous gene, or they can be recessive and can only be expressed when you have two copies of them (on both sets of chromosomes, from both parents).
Answer:
yes
Explanation:
Pretty much is only with breathing. If a person has asthma, the inside of these airways is irritated and swollen. Asthma can cause shortness of breath, wheezing, coughing, and tightness in the chest. For some people, asthma symptoms only appear when they are exposed to something that irritates their breathing. Others have a kind of asthma that makes breathing difficult all of the time.
The correct answer is d.) protista
