Question

image below shows the process of fertilization. label the following image with the terms: zygote, egg, 23, sperm, 46, embryo (some terms will be used more than once). then, circle haploid or diploid for each image.
image of fertilization process with labels for chromosome number and haploid/diploid status for sperm, egg, fertilized egg, and embryo

Explanation:

Step1: Identify Sperm Cell

Sperm cells are haploid (n) in humans, with 23 chromosomes. So for the sperm image: Chromosome # = 23, Haploid(n) circled.

Step2: Identify Egg Cell

Egg cells (ovum) are also haploid (n) in humans, with 23 chromosomes. So for the egg image: Chromosome # = 23, Haploid(n) circled.

Step3: Identify Zygote

Fertilization of sperm (n) and egg (n) forms a zygote, which is diploid (2n) with 46 chromosomes (23 + 23). So for the zygote image: Chromosome # = 46, Diploid(2n) circled.

Step4: Identify Embryo

The embryo develops from the zygote, so it is diploid (2n) with 46 chromosomes (cells undergo mitosis, maintaining diploidy). So for the embryo image: Chromosome # = 46, Diploid(2n) circled.

Answer:

• Sperm: Chromosome # 23, Circle Haploid(n)
• Egg: Chromosome # 23, Circle Haploid(n)
• Zygote: Chromosome # 46, Circle Diploid(2n)
• Embryo: Chromosome # 46, Circle Diploid(2n)